精包(英語:Spermatophore,亦稱為精莢精子包囊)是一種由黏液黏在一起的精子群,由部分渦蟲類、類、頭足類、有尾類等雄性動物黏腺分泌形成。在交配時被移送入雌蟲體內。在昆蟲類中,精包在雌體內降解;在蠑螈類中,精包在雌性泄殖腔中被吸收。

巨型烏賊的精包。

Wikiwand in your browser!

Seamless Wikipedia browsing. On steroids.

Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.

Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.