File:Pairs of conjugate sperm attached by the head.jpg

Conjugate Sperm Pairs in American Opossums

(A) Paired and single sperm of the short-tailed opossum Monodelphis domestica.

(B) Pairs of conjugate sperm attached by the heads, the top pair starting to separate after capacitation.

(C) Pair of conjugate sperm separating.

(D) Electron microscopy of exquisite sperm head alignment in conjugate sperm pair (credit: Harry Moore). doi:10.1371/journal.pbio.0060130.g003

Citation: Pizzari T, Foster KR (2008) Sperm Sociality: Cooperation, Altruism, and Spite. PLoS Biol 6(5): e130. doi:10.1371/journal.pbio.0060130

Copyright: © 2008 Pizzari and Foster. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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