The name monotreme means one hole referring to the single orifice they use for reproduction, excretion, and egg-laying.
单孔目这词指
孔,指的
用于生育、排泄,和下蛋的孔。
Reptiles, amphibians, most birds, and monotremes like the platypus have a cloaca, a multipurpose swiss army knife of holes, linking the urinary, waste, and reproductive systems… I guess you could say: one ring to rule them all.
爬行物、两栖
物、大多数鸟类和像鸭嘴兽这样的单孔类
物都有泄殖腔,这
把多用途的瑞士军刀,连接着泌尿系统、废物系统和生殖系统… … 我想你可以说:
环统领它们。