Britannica AI Icon

polygamy

animal behavior
Also known as: mate-sharing

Quick Summary

In animal behavior, polygamy refers to mating systems where one individual mates with multiple partners. This can occur in several forms: polygyny, where one male mates with multiple females; polyandry, where one female mates with multiple males; and polygynandry, where multiple males and females form stable breeding groups.

The prevalence of polygyny, particularly in mammals, is often linked to the male's lower investment in parental care compared to females, who invest more in eggs and offspring. This allows males to increase their reproductive success by mating with multiple females. While sexual selection is a dominant factor in polygamous species, leading to higher male mortality, monogamy is favored when environmental resources are limited and parental care from both parents is crucial for offspring survival.1

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.