Retained testes were found in 11 (16%) of 71 black bears (Ursus americanus) examined over a 3-year period in Florida (USA). Four of the 11 bears were older than one year and weighed more than 32 kg; therefore, they were considered to be cryptorchid. The remaining seven bears may have had delayed testicular descent due to their apparent normal immature development. This is the first known published report of the prevalence of cryptorchidism and apparently normal delayed testicular descent in a black bear population.
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1 October 1996
Cryptorchidism and Delayed Testicular Descent in Florida Black Bears
Michael R. Dunbar,
Mark W. Cunningham,
John B. Wooding,
Randy P. Roth
Journal of Wildlife Diseases
Vol. 32 • No. 4
October 1996
Vol. 32 • No. 4
October 1996
black bear
cryptorchid
reproduction
testes
Ursus americanus