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Rivalry with neighboring groups may be a key driver of male size in primates
- May 13, 2026 at 2:30 PM
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In many primate species, males are much larger than their female counterparts, which is generally attributed to male competition for mates (sexual selection). But bigger bodies may not just be about alpha males defeating rivals. They could also come about because of competition between neighboring social groups, according to a new study published in the journal Biology Letters.
Originally published at Phys.org