Results 211 to 220 of about 31,258 (246)

CRETINISM IN A NORTH AMERICAN BLACK BEAR(URSUS AMERICANUS)

Veterinary Radiology & Ultrasound, 2002
Congenital hyperplastic goiter and cretinism were documented in a 16 month‐old male North American black bear (Ursus americanus). The cub was captured at approximately 8 months of age and maintained for an additional 8 months in captivity. Clinical signs included growth retardation, clumsiness, and facial dysmorphism.
Robert B, Duncan, Jeryl C, Jones, H David, Moll, Martha M, Moon, Dennis J, Blodgett, Michael R, Vaughan   +5 more
openaire   +2 more sources

Social behavior of the American black bear (Ursus americanus)

2021
Black bears are generally described as a solitary species, that is, the primary contact they have with their own species is between sows and cubs and with mates during the breeding season. My data contradict the idea that bears are solitary and suggest that black bears have a well-developed social behavior that has developed such that they can access a
Benjamin Kilham, James Robert Spotila
openaire   +1 more source

Picture object recognition in an American black bear (Ursus americanus)

Animal Cognition, 2016
Many animals have been tested for conceptual discriminations using two-dimensional images as stimuli, and many of these species appear to transfer knowledge from 2D images to analogous real life objects. We tested an American black bear for picture-object recognition using a two alternative forced choice task. She was presented with four unique sets of
Zoe, Johnson-Ulrich, Jennifer, Vonk, Mary, Humbyrd, Marilyn, Crowley, Ela, Wojtkowski, Florence, Yates, Stephanie, Allard   +6 more
openaire   +2 more sources

Concept formation in American black bears, Ursus americanus

Animal Behaviour, 2012
Despite their large relative brain size, bears have been neglected in studies of comparative cognition in comparison to their fellow carnivores, the social canines and pinnipeds. Here, three captive adult American black bears were presented with a series of natural concept discrimination tasks on a touchscreen computer, in which the discriminations ...
Vonk, Jennifer, Jett, Stephanie E., Mosteller, Kelly W.   +2 more
openaire   +2 more sources

Composition of fat from a North American black bear

Oil & Soap, 1943
The physical and chemical constants have been determined on a sample of bear fat of known history. The values are within the range of those reported in the literature.
R. A. Rasmussen, P. W. Morgal, E. J. Miller   +2 more
openaire   +1 more source

Geographic distribution of American black bears in North America

Ursus, 2014
Abstract American black bears (Ursus americanus) historically inhabited every province and territory in Canada, all continental states in the United States (U.S.), and northern states of Mexico. We used BearsWhere?, an Internet mapping tool, to survey bear biologists in Canada, Mexico, and the U.S.
Brian K. Scheick, Walter McCown
openaire   +1 more source

American black bear nuisance complaints and hunter take

Ursus, 2010
Abstract Regulated hunts of carnivores are believed to prevent property damage and other conflicts with people. Few studies have tested if public hunting reduces subsequent complaints about carnivores. We analyzed 10 years of data on nuisance complaints from a hunted American black bear (Ursus americanus) population in Wisconsin, USA.
Adrian Treves, Kirsten J. Kapp, David M. MacFarland   +2 more
openaire   +1 more source

Fibroma in an American black bear

Journal of the American Veterinary Medical Association, 1982
W B, Karesh, J D, Clark, P H, Long
openaire   +2 more sources

Survival of rehabilitated yearling American black bears

Ursus, 2022
Rachael E. Urbanek, Mike N. Gillikin, Colleen Olfenbuttel, Casey G. Dukes   +3 more
openaire   +1 more source

Epizootic of adenovirus infection in American black bears

Journal of the American Veterinary Medical Association, 1984
J E, Collins, P, Leslie, D, Johnson, D, Nelson, W, Peden, R, Boswell, H, Draayer   +6 more
openaire   +2 more sources