Split parturition in a black bear

被引：0

作者：

Scanlon, PF ^{[1
]}

Vaughan, MR ^{[1
]}

Beal, WE ^{[1
]}

机构：

[1] Virginia Polytech Inst & State Univ, Dept Fisheries & Wildlife Sci, Blacksburg, VA 24061 USA

来源：

URSUS, VOL 10 - 1998 | 1998年 / 10卷

关键词：

black bear; parturition; parturition anomaly; pregnancy; Ursus americanus;

D O I：

暂无

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

A 3-year-old black bear (Ursus americanus) captured following initiation of pregnancy was held in captivity from August 1990 through April 1991. Ultrasonic imaging in January 1991 indicated the presence of 3 fetuses. A single fetus was born dead on 12-13 January 1991, and a seat recovered on 10 January 1991 yielded 8 fetal bear claws that were smaller than those of the newborn fetus. It was concluded that a split parturition had occurred in this bear, an event which occurs rarely in any mammal species.

引用

页码：61 / 62

页数：2

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