title: Seasonal changes in the testis and epididymis of the American Grey squirrel, Sciurus carolinensis.
mesh_terms: D000818:Animals; D001835:Body Weight; D004822:Epididymis / Q000033:anatomy & histology; D008297:Male; D009929:Organ Size; D012589:Sciuridae / Q000033:anatomy & histology*; D012621:Seasons; D012671:Seminiferous Tubules / Q000033:anatomy & histology; D013091:Spermatogenesis; D013737:Testis / Q000033:anatomy & histology*