Labrador Retriever: Difference between revisions
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[[image:Labrador_retriever_and_children.jpg|right|thumb|300px|Noted for their friendly, non-agressive nature, Labrador retrievers generally make excellent family pets, if their need for exercise and companionship is met. Photo by Andrew A. Skolnick]] | [[image:Labrador_retriever_and_children.jpg|right|thumb|300px|Noted for their friendly, non-agressive nature, Labrador retrievers generally make excellent family pets, if their need for exercise and companionship is met. Photo by Andrew A. Skolnick]] | ||
The '''Labrador retriever''' is the most popular registered [[dog breed|breed]] of [[dog]] in both the [[United Kingdom]] and the [[United States]], two of the most "dog-friendly" cultures in the world. What about this [[Dog breeeds|breed]] accounts for such popularity? Members of the [[retriever]] dog group, Labradors are generally both exceptionally friendly, and eager to please, making them excellent companions for both adults and children. Their [[Dog intelligence|intelligence]] and size also makes them suitable [[service animals]]. | The '''Labrador retriever''' is the most popular registered [[dog breed|breed]] of [[dog]] in both the [[United Kingdom]] and the [[United States]], two of the most "dog-friendly" cultures in the world. What about this [[Dog breeeds|breed]] accounts for such popularity? Members of the [[retriever]] dog group, Labradors are generally both exceptionally friendly, and eager to please, making them excellent companions for both adults and children. Their [[Dog intelligence|intelligence]] and size also makes them suitable [[service animals]]. | ||
[[image:Fox_red_yellow_Labrador_retriever.jpg|right|thumb|300px|The British style of Labradors are stockier and have broader heads than the American or field style.]] | |||
Having been bred first to help [[Newfoundland]] fishermen haul in their fishing nets and then in Great Britain as '[[gun dog|gun dogs]] for hunting waterfowl, Labs are powerful swimmers who love the water. | Having been bred first to help [[Newfoundland]] fishermen haul in their fishing nets and then in Great Britain as '[[gun dog|gun dogs]] for hunting waterfowl, Labs are powerful swimmers who love the water. | ||
Revision as of 14:20, 2 April 2007
The Labrador retriever is the most popular registered breed of dog in both the United Kingdom and the United States, two of the most "dog-friendly" cultures in the world. What about this breed accounts for such popularity? Members of the retriever dog group, Labradors are generally both exceptionally friendly, and eager to please, making them excellent companions for both adults and children. Their intelligence and size also makes them suitable service animals.
Having been bred first to help Newfoundland fishermen haul in their fishing nets and then in Great Britain as 'gun dogs for hunting waterfowl, Labs are powerful swimmers who love the water.
History
The Labrador is believed to have originated on the island of Newfoundland, now part of the province of Newfoundland and Labrador, Canada.[1] The breed is not indigenous to the Newfoundland area nor is there evidence they accompanied early Inuit settlers.[2] It is thought to have descended over time from the St. John's Water Dog (no longer in existence), a crossbreed of native water dogs and the Newfoundland dog (to which the Labrador is closely related), through ad-hoc breedings by early settlers in the mid to late 15th century.[1]
The name Labrador was given to this dog by the Earl of Malmesbury and other breeders in England in order to differentiate them from the Newfoundland dog. The Labrador Retriever was originally called the lesser Newfoundland or the St. John's dog. Other origins suggested for the name include the Spanish or Portuguese word for rural/agricultural workers, Portuguese "lavradores" or Spanish "labradores", and the village of Castro Laboreiro in Portugal whose herding and guard dogs bear a "striking resemblance" to Labradors.[1] The original forebearers of the St. John's have variously been suggested to be crossbreeds of the black St. Hubert's hound from France, working water dogs from Portugal, old European pointer breeds and dogs belonging to the indigenous peoples of the area.[1] Two breeds emerged; the larger [[Newfoundland (dog)|Newfoundland]] used for hauling, and the smaller short-coat retrievers used for retrieval and pulling in nets from the water. The Lab is of the latter type.
Many fishermen originally used the Lab to assist in bringing nets to shore; the dog would grab the floating corks on the ends of the nets and pull them to shore. They were brought to the Poole area of England, then the hub of the Newfoundland fishing trade, and became prized amongst the gentry as sporting dogs.[1]
Lab timeline
Some of the landmarks in early Lab history include:
- 1814 - The first known written reference to the Labrador, in "Instructions to Young Sportsmen".
- 1823 - Sporting artist Edwin Landseer painted a black dog with white markings titled "Cora. A Labrador Bitch," by which time it appears the breed was already firmly established, with several of the nobility either
owning or breeding them by the end of that century.
- 1870 - By this time, the name "Labrador Retriever" had become well established.[1]
- 1887 - James Howard Harris, the 3rd Earl of Malmesbury wrote in a letter to the 6th Duke of Buccleuch, "We always call mine Labrador dogs and I have kept the breed as pure as I could from the first I had from Poole ... known by their having a close coat which turns the water off like oil and, above all, a tail like an otter." [1]
- 1899 - Birth of the first Yellow Lab on record, named Ben of Hyde. Photographs of early Labradors, including 'Ben of Hyde', show slight changes to the breeds coat and appearance over the past 100 years.
The modern Labrador Retriever is among the oldest of the modern "recognized" breeds; according to the American Kennel Club, pedigrees exist back to 1878.
The Kennel Club recognized the Lab in 1903. The first registration of Labradors by the AKC was in 1917; many English dogs were imported post World War I and these formed the foundation of the American variety.
Other names
The Lab and its ancestors have also been known under the
following names:
St. John's Dog, Lesser St. John's Dog, Newfoundland Dog,
Lesser Newfoundland Dog, Little Newfoundlanders,
Newfoundland Water Dog, Labrador Dogs, St. John's Labrador
Dogs, Black Water Dog, Lesser Labrador, Smaller Labrador,
English Retriever, and English Labrador.[1]
Appearance
Overview of appearance
Labradors are moderately large dogs with males typically
weighing 27 to 36 kg (60 to 80 lb) and females 23 to 32 kg
(45 to 70 lb). Dogs bred for the show ring tend to
considerably heavier with broader heads.
Their coats are short and smooth, and they possess a thick,
powerful tail like that of an otter. The majority of
the characteristics of this breed with the exception of
color are the result of breeding to produce a
As with some other breeds, the English (typically "show")
and the American (typically "working" or "field") lines
differ. Labs are bred in England as a medium size dog,
shorter and stockier with broader faces and a slightly
calmer nature than their American counterparts, which are
bred as taller, lighter-built dogs. No distinction is made
by the AKC, but the two
classifications come from different breeding. Australian
stock also exists; though not seen in the west, they are
common in Asia. (See #Physical lines and variants)
The breed tends to shed hair
regularly throughout the year. Lab hair is usually fairly
short and straight, and the tail quite broad and strong.
The otter-like tail and webbed toes of the Labrador
retriever make them excellent swimmers. Their interwoven
coat is also relatively waterproof, providing more
assistance for swimming. The dogs use their tail as rudders
to help them steer while swimming. Their short hair allows them to work in icy waters, where longer-hair retrievers would be dragged down by ice clinging to their coats.
Show standards
There is a great deal of variety among labs. These
characteristics are typical of the show-bred or
bench-bred lines of this breed in the United States.
- Size: Labs are a medium-large but compact breed.
They should have an appearance of proportionality. They
should be as long from the shoulders back as they are from
the floor to the withers. Dogs should stand 22 1/2 to 24
1/2 inches (55.9 to 62 1/4cm) tall at the withers and
weigh 65 to 80 pounds (30 to 36 kg). Bitches should
stand 21 1/2 to 23 1/2 inches (54 1/2 to 60 cm)
and weigh 55 to 70 pounds (25 to 32 kg). (By
comparison under UK Kennel Club standards, height should be
22 to 22.5 inches (55.9 to 57.2 cm) for males, and
21.5 to 22 (54.6 to 55.9 cm) inches for females)
- Coat: The lab's coat should be short and dense, but
not wiry. Acceptable colors are chocolate, black, and
yellow. There is much variance within yellow labs
- Head: The head should be broad with a pronounced
stop and slightly pronounced brow. The eyes should be kind
and expressive. Appropriate eye colors are brown and hazel.
The lining around the eyes should be black. The ears should
hang close to the head and are set slightly above the eyes.
- Jaws: The jaws should be strong and powerful. The
muzzle should be of medium length, and should not be too
tapered. The jowls should hang slightly and curve
gracefully back.
Color
There are three recognised colors for labs:[3] black (a solid black color), yellow (anything from light cream to gold to fox-red), and chocolate (medium to dark brown). Puppies of all colors may occur in the same litter. The nose of a black or yellow Lab should be black and a chocolate's should be brown, although some fading to pink is permitted. Pink noses without pigmentation is a disqualification. A color variation some call "silver" may involve unusually light-colored chocolates or may be the result of cross breeding with Weinmaraners. The variation is not recognized by any breed or kennel club and is not permitted in confirmation shows.
Variant lines
Differences in the physical build of the dog have arisen as
a result of specialized breeding. Dogs bred for hunting and
field-trial work are selected first for working ability,
whereas dogs bred to compete for show [[champion
dog|championships]] are selected for what judges look for
in the show ring. There are significant differences between
field and trial-bred (sometimes referred to as "American")
and show-bred (or "English") lines of Labradors. In
general, show-bred labs are heavier, slightly
shorter-bodied, and have a thicker coat and tail. Field
labs are generally longer legged, lighter, and more lithe
in build. In the head, show labs tend to have broader
heads, better defined stops, and more powerful necks, while
field labs have lighter and slightly narrower heads with
longer muzzles.[4] [5] [6] Field-bred labs are commonly higher energy
and more high-strung compared to the show-bred lab, and as
a consequence may be more suited to working relationships
rather than being a "family pet." [4] [5] [6] Of
course, each individual dog differs. Some breeders,
especially those specializing in the field type, feel that
breed shows do not adequately recognize their type of dog.
Talk of officially splitting the breed is also sometimes
supported.[7]
Other colors
Lab nose and skin pigmentation
Labrador Retriever. The nose and lips are pink or
flesh-colored, the defining aspect of Dudley pigmentation,
as compared to the more standard brown or black.]] Because Lab coloration is controlled by multiple genes,
it is possible for recessive genes to emerge some
generations later and also there can sometimes be
unexpected pigmentation effects to different parts of
the body. Pigmentation effects appear in regard to yellow
labs, and sometimes chocolate, and hence the majority of
this section covers pigmentation within the yellow lab. The
most common places where pigmentation is visible are the
nose, lips, gums, feet, and the rims of the eyes, which may
be black, brown, light yellow-brown ("liver", caused by
having two genes for chocolate),[8] or several other colors. A lab
can carry genes for a different color, for example a black
lab can carry recessive chocolate and yellow genes, and a
yellow lab can carry recessive genes for the other two
colors. DNA testing can reveal some aspects of these.
Less common pigmentations (other than pink) are a fault,
not a disqualification, and hence such dogs are still
permitted to be shown.[8]
The intensity of black pigment on yellow labs is controlled
be a separate gene independent of the fur coloring.[8] Yellow labs usually have
black noses, which gradually turn pink with age (called
"snow nose" or "winter nose"). This is due to a reduction
in the enzyme tyrosinase which indirectly controls
the production of melanin, a dark coloring. Tyrosinase
is temperature dependent - hence light coloration can be
seasonal, due to cold weather - and is less produced with
increasing age (2 years old onwards). As a result, the nose
color of most yellow labs becomes a somewhat pink shade as
"Dudley"
A coloration known as "Dudley" is also
possible. Dudleys are variously defined as yellow labs
which are unpigmented (pink) (LRC), yellow with liver
pigmentation, or "flesh colored" (AKC), rather than having
black or brown pigmentation.[8] A yellow lab with brown or
chocolate pigmentation (for example, a brown/chocolate
nose), is not a Dudley. Breed standards for Labradors
considers a true Dudley to be a disqualifying feature for a
show lab ("Disqualification: A thoroughly pink nose or one
lacking in any pigment"). True Dudleys are extremely
Breeding in order to correct pigmentation often lacks
dependability. Because color is determined by many genes,
some of which are recessive, crossbreeding a
pigmentationally non-standard yellow lab to a black lab may
not correct the matter or prevent future generations
carrying the same recessive genes. That said, pigmentation
is often not an issue with animal lovers for whom such
issues are often unimportant, and only has significance for
those involved with showing and breeding.
Temperament and activities
Good-tempered, very agile. Excellent nose, soft mouth; keen love of water. Adaptable, devoted companion.
Intelligent, keen and biddable, with a strong will to
please. Kindly nature, with no trace of aggression or undue
shyness.
– UK Kennel Club standard
Labradors are a well-balanced and remarkably versatile
breed, adaptable to a wide range of functions as well as
making very good pets. As a rule they are not excessively
prone to territorialism, pining, insecurity, aggression,
destructiveness, hypersensitivity, or other difficult
traits which manifest in a variety of breeds, and as the
name suggests, they are excellent retrievers. As an
extension of this, they instinctively enjoy holding objects
and even hands or arms in their mouths, which they can do
with great gentleness. They are also known to have a very
soft 'feel' to the mouth, as a result of being bred to
retrieve game such as waterfowl. They are prone to chewing
objects (though they can easily be trained out of this
behavior). The Labrador Retriever's coat repels water to
some extent, thus facilitating the extensive use of the dog
in waterfowl hunting.
Labradors have a reputation as a very mellow breed and an
excellent family dog (including a good reputation with
children of all ages), but some lines (particularly those
that have continued to be bred specifically for their
skills at working in the field rather than for their
appearance) are particularly fast and athletic. Their
fun-loving boisterousness and lack of fear can result in
mischief, and may require training and firm handling at
times to ensure it does not get out of hand. Labradors
mature at around three years of age; before this time they
can have a significant degree of puppyish energy, often
mislabelled as being
hyperactive.[12] Labs often enjoy retrieving a ball
endlessly and other forms of activity (such as [[dog
agility]] or flyball), are considerably "food and fun"
oriented, very trainable, and open-minded to new things,
and thrive on human attention and interaction, of which
they find it difficult to get enough. Reflecting their
retrieving bloodlines, almost every Lab loves playing in
water or swimming.
Although they will sometimes bark at noise,
especially a degree of "alarm barking" when there is noise from unseen sources, labs
are not on the whole
noisy[13] or territorial,
and are often very easygoing and trusting with strangers,
and therefore are not very often used as [[guard
dog]]s.[14]
Labradors have a reputation for appetite, and
individuals have been described as willing to eat "anything
that isn't nailed down".Cite error: Closing </ref>
missing for <ref>
tag, and it is a healthy breed with
relatively few major problems. Notable issues related to
health and wellbeing include:
Medical conditions:
- Labs are somewhat prone to hip dysplasia (and
possibly other forms, such as elbow dysplasia),
especially the larger dogs, though not as much as some
other breeds. Hip scores are recommended before breeding.
- Labs are sometimes prone to [[Otitis externa in
animals|ear infection]], because their floppy ears trap
warm moist air. This is easy to control, but needs regular
checking to ensure that a problem is not building up
unseen. A healthy Lab ear should look clean and light pink
(almost white) inside. Darker pink (or inflamed red), or
brownish deposits, are a symptom of ear infection. The
usual treatment is regular cleaning daily or twice daily
(being careful not to force dirt into the sensitive inner
ear) and sometimes medication (ear drops) for major cases.
As a preventative measure, some owners clip the hair
carefully around the ear and under the flap, to encourage
better air flow.
- A Labrador that undertakes significant swimming without
building up can develop a swelling or apparent kink known
as swimtail. This can be easily treated by a veterinary
clinic and tail rest.
- Labs also suffer from the risk of knee problems. A
luxating patella is a common occurrence in the knee
where the leg is often bow shaped.
- Eye problems are also possible in some labs, particularly
progressive retinal atrophy and retinal dysplasia.
Dogs which are intended to be bred should be examined by a
veterinary
ophthalmologist.[15]
Weight:
- Labs are often overfed and are allowed to become
overweight, due to their blatant enjoyment of treats,
hearty appetites, and endearing behavior towards people. A
healthy Lab should keep a very slight hourglass waist and
be fit and lithe, rather than fat or heavy-set. Excessive
weight is strongly implicated as a risk factor in the later
development of hip dysplasia and [[diabetes in cats and
dogs|diabetes]], and also can contribute to general reduced
health when older. Arthritis is commonplace in older,
overweight labs.
Exploration:
- Labradors are not especially renowned for escapology.
They do not particularly jump high fences or dig, although
some labs may climb or jump up for fun or to explore. As a
breed they are highly intelligent, and capable of intense
single-mindedness and focus if their interest is caught.
Therefore with the right conditions and stimuli, a bored
lab could "turn into an escape artist par exellence."
- It is also worth noting that Labradors as a breed are
curious, exploratory and love company, following both
people and interesting scents for food, attention and
novelty value. In this way, they can often "vanish" or
otherwise become separated from their owners with little
fanfare. They are also popular dogs if found. Because of
this it is good practice that labradors are [[Microchip
implant (animal)|microchipped]], with the owners name and
address also on their collar and tags.
Common Labrador crossbreeds
The Labradoodle is a popular [[Dog hybrids and
crossbreeds|designer dog]] that combines a Labrador with a
Poodle. Labrador-German Shepherd and
Labrador-Border Collie crosses are also popular for
their intelligence and working qualities. The [[assistance
dog]] organization Mira utilizes
Labrador-Bernese Mountain Dog crosses (Labernese) with
success[16]. Other Labrador crossbreeds are noted on the
[http://www.achclub.com/modules.php?name=Breeders American
Canine Hybrid Club] website with some having
[http://www.dogbreedinfo.com/americancaninehybridclub.htm
pages] on dogbreedinfo.com.
Famous Labs
- The Andrex Puppy, featured primarily in UK television
spots for the Andrex brand of toilet paper, known in
elsewhere as Scott or Cottonelle, also featuring the
puppy mascot.
- Bouncer, from Neighbours
- Buddy, U.S. President [[Bill
Clinton]]'s Labrador, and Seamus, Clinton's other Labrador,
received for Father's Day
- Jet (f.k.a. Bootsy), briefly adopted by the fictional
detective genius Nero Wolfe in Rex Stout's 1954
novella "Die Like a Dog" (collected in the volume Three
Witnesses and adapted for A&E TV's 2001–2002 series [[A
Nero Wolfe Mystery]]). "Labradors," Wolfe tells his
assistant Archie Goodwin, "have a wider skull than any
other dog, for brain room."
- King Buck, the first black lab to appear on a US
- Koni, Russian President
Vladimir Putin's Labrador Retriever
- Luath, from The Incredible Journey
- Marley, "The World's Worst Dog", featured in journalist
John Grogan's book Marley & Me
- Sadie, a black Labrador who saved the lives of dozens
of soldiers in Afghanistan by detecting a bomb. Recipient
of the Dickin Medal, the animal equivalent of the
[[Victoria
Cross]].[18]
- Ubu Roi, of UBU Productions
- Vincent, from [[Lost (TV
series)|Lost]], played by the famous dog [[Madison
(dog)|Madison]]
- Zanjeer, a police sniffer dog who detected
arms and ammunition used in 1993 Mumbai
(Bombay) serial explosions. Zanjeer was born on [[January
7]], 1992, and was inducted into the Bomb Detection and
Disposal Squad on December 29, 1992. He was trained
at the Dog Training Centre of the Criminal Investigation
Department in Pune. During his service, his haul was
excellent. He helped recover 57 country-made bombs, 175
petrol bombs, 11 military bombs, 242 [[Hand
grenade|grenades]] and 600 detonators. His biggest
contribution to the police force and the city was the
detection of 3,329 kg of RDX. He also
helped detect 18 AK-56 rifles and
five 9mm pistols. He died at a [[Veterinary
medicine|veterinary]] hospital in Parel.
- Zeke the Wonder Dog (1&2), mascot and frisbee fanatic for
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 http://alllabs.com/cgi-local/SoftCart.exe/labrador_retriever_history.htm?E+scstore (alllabs.com "History of the Lab")
- ↑ Marley and me, p.52
- ↑ The American Kennel Club, Labrador Retriever Breed Standard: "The Labrador Retriever coat colors are black, yellow and chocolate. Any other color or a combination of colors is a disqualification. A small white spot on the chest, called a star, is permissible, but not desirable. White hairs from aging or scarring are not to be misinterpreted as brindling. Black:-Blacks are all black. A black with brindle markings or a black with tan markings is a disqualification. Yellow:-Yellows may range in color from fox-red to light cream, with variations in shading on the ears, back, and underparts of the dog. Chocolate:-Chocolates can vary in shade from light to dark chocolate. Chocolate with brindle or tan markings is a disqualification."
- ↑ 4.0 4.1 http://www.labbies.com/history.htm History of the Labrador Retriever. Retrieved on February 5, 2007.
- ↑ 5.0 5.1 http://www.pineycreeklabradors.com/id20.h tml
- ↑ 6.0 6.1 http://www.woodhavenlabs.com/english-ameri can.html
- ↑ http://www.woodhavenlabs.com/documents/breed _split2.pdf
- ↑ 8.0 8.1 8.2 8.3 8.4 8.5 http://www.woodhavenlabs.com/ yellow-pigment.html
- ↑ See [http://www.justlabradors.com/forum/index.php?topic=10185.m sg110720#msg110720 this post] on justlabradors.com forum, posted July 2006 by WigWag [presumably Sharon Wagner of wigwaglabradors.com, cited elsewhere in this article concerning labrador coloration]
- ↑ [http://www.canadasguidetodogs.com/labrador/labartic le6.htm Labrador Retriever Breed Standards Comparison Chart]
- ↑ [http://www.dogbreedadvice.com/Labrador-FA Q Dog Breed Advice on Dudley Labradors]
- ↑ http://www.dogbreedadvic e.com/Labrador-FAQ : "Labradors are active dogs especially in puppyhood. And Labradors often do not fully mature until around 3 years of age! This means you will have a dog that is mentally a puppy (with a puppy's energy) until this age regardless of its physical size! Often a Lab puppy is labelled hyperactive when it is simply a normal, exuberant and bouncy puppy. If you are prepared to deal with this period of time in their lives, you will not have problems."
- ↑ http://www.dogbreedadvice.com/Labrador-FAQ : "excessive barking is not generally typical of the breed. Labradors often give a warning bark in response to an unusual event..."
- ↑ http://www.dogbreedadvice.com/Labrador-FAQ : "Labradors are not reliable guards. Some can be protective and most will probably bark if they hear or see something they don't like -- particularly if it is near their yard. If your main purpose in getting a dog is to have a guard dog, a Labrador is not a good choice, but if you want an "alarm" barker, most Labradors are fine."
- ↑ http://www.dogbreedadvice.com/Labrador -FAQ
- ↑ http://www.mira.ca/contenta/nc1-3a.html Mira Foundation: The Labernese. Retrieved February 18, 2007
- ↑ Source: alllabs.com describes King Buck as "famous". [http://alllabs.com/cgi-local/SoftCart.exe/labrador_retriev er_history.htm?E+scstore]
- ↑ http://www.telegraph.co.uk/news/main.jhtml?xml =/news/2007/01/27/wsadie27.xml
- Other sources
- Cunliffe, Juliette (2004). The Encyclopedia of Dog Breeds. Parragon Publishing. ISBN 0-7525-8276-3.
- Fergus, Charles (2002). Gun Dog Breeds, a Guide to Spaniels, Retrievers,
and Pointing Dogs. Guilford, CT: Lyons Press. ISBN 1-58574-618-5.
External links
- Clubs, associations, and societies
- [http://www.thelabradorretrieverclub.com The Labrador
retriever Club (UK)]
- [http://www.thelabradorclub.com/ The Labrador Retriever
Club, Inc. (USA)]
- [http://www.nrcc-canada.com/ National Retriever Club of
Canada]
- [http://www.labrador-canada.com/ Labrador Retriever Club
of Canada]
Labradors Society]
- Information
- [http://www.labradornet.com labradornet.com, a
comprehensive lab site]
- [http://www.labradornet.com/labstats.html Labrador
statistics, from labradornet.com]
Website showing differences between working Labs and show
Labs]
- [http://www.woodhavenlabs.com/articles.html Woodhaven
Labrador reference page - index of comprehensive articles
on every aspect of Labs and dogs in general]
- [http://www.labradornet.com/typecast.html Comparative
images of common different labrador bloodlines]
- [http://www.infos247.com/labrador/ Comprehensive
information about labradors and breeding]
- 'Silver' labs
Labrador Retriever Club, Inc. statement on "silver"
labradors]
statement on "silver" labradors]
- [http://www.labbies.com/silver.htm Silver Labradors - Real
or Myth? (Detailed discussion and information)]
- [http://www.woodhavenlabs.com/silverlabs.html The Truth
Behind Silver Labradors (by Sharon A. Wagner, MS)]