| testicular atrophy in a mule deer population. | monitoring mule deer (odocoileus hemionus) on a former plutonium production site along the columbia river at the hanford site, washington (usa) revealed 27 (23%) of 116 adult males had unusually shaped, velvet-covered antlers and abnormally developed testicles. we captured 32 males to examine age-class differences and the ratio of affected to unaffected deer and determine whether affected testicles were atrophic or hypoplastic. we found testicular atrophy in most deer with velvet-covered antlers ... | 1997 | 9249686 |