marsupials

tasmanian devils are the kangaroo's crankiest cousin. like most marsupials, they start as tiny specks in their mother's pouch.

袋獾是袋鼠最易怒的堂兄。像大多数有袋类动物，它们在母亲的育儿袋中长大。

in marsupials, such as opossum and kangaroo, the life span of the corpus luteum is similar in pregnant and nonpregnant females.

在有袋目动物中，如负鼠和袋鼠，妊娠和非妊娠母兽的黄体存在时间相似。4.Distribution of Cholinergic Nerves in Nonpregnant Uteri and the Nervous Change in Pregnant Goat Uteri山羊子宫内胆碱能神经分布及妊娠时的变化

colugos resemble marsupials in that their young are born early in embryonic development.

像有袋动物一样，猫猴的宝宝在胚胎发育早期就出生。