Split Parturition Observed in a Captive North American Brown Bear (Ursus arctos)
Publication/Journal: Zoo Biology
Keywords: brown bears, hibernation, pregnancy, ursid
2012
Reproductive steroid hormones and ovarian activity in felids of the Leopardus genus
Publication/Journal: Zoo Biology
Keywords: estrogens, estrous cycle, fecal steroids, non-invasive monitoring, ovarian activity, progestogens, reproduction
2001