Male lemurs grow bigger testicles when there are other males around

Dominant male Verreaux’s sifakas always have the largest testicles in their group to make the most sperm, and they can grow their gonads to make sure of it

SINSIN
Jun 7, 2024 - 18:00
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Male lemurs grow bigger testicles when there are other males around
Dominant male Verreaux’s sifakas always have the largest testicles in their group to make the most sperm, and they can grow their gonads to make sure of it

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