viviparity

viviparity — 名詞

1. A biological reproductive method in which an animal's offspring grow inside the

1.名詞C2
釋義

胎生

胎兒在體內發育至出生的生殖方式

A biological reproductive method in which an animal's offspring grow inside the parent's body and are born as live young, rather than being laid as eggs that develop outside.

例句

In reptiles, viviparity has evolved independently in skinks, chameleons, and certain sea snakes.

在爬蟲類中，胎生已在石龍子、變色龍及某些海蛇中獨立演化多次。

collocation: viviparity has evolved independently in [group]

Indra compared the energy demands of viviparity and egg-laying in her thesis on freshwater fish.

Indra 在她的淡水魚類論文中比較了胎生與卵生的能量消耗。

collocation: viviparity compared with egg-laying

同義詞
  • live birth

    less technical, everyday term; viviparity is the formal scientific label

反義詞
  • oviparity

    the opposite reproductive strategy — laying eggs that develop outside the parent's body

  • ovoviviparity

    a middle strategy where eggs hatch inside the mother but the embryos receive no direct nutrition from her body

文法句型

used as uncountable noun

用法筆記

Primarily used in academic writing about animal reproduction. Frequently contrasted with oviparity (egg-laying) and ovoviviparity (eggs that hatch inside the mother but receive no placental nourishment). Subject of the sentence is typically a taxonomic group (reptiles, fish, amphibians) or a biological concept (the evolution, the transition).

常見錯誤

❌Viviparity means mammals give birth to live babies.
✅Viviparity is the reproductive strategy in which young develop inside the parent and are born alive.
💡Viviparity is a biological term for any animal that bears live young, not limited to mammals or to humans.