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News tagged with sperm competition

These male marsupials forgo sleep for sex during the breeding season

Jan 25, 2024

Distribution of females influences the evolution of testes size in Australian rodents

May 4, 2022

Older males come out on top in battle of the breeding mosquitofish

Jul 30, 2021

Breaking the patrisharky: Scientists reexamine gender biases in shark, ray mating research

Mar 4, 2021

Love rivals risk having offspring with a greater number of harmful mutations

Mar 16, 2020

Competition leads to fathers who produce more male sperm

Jul 1, 2019

A study on zebrafish reveals how sexual rivalry can affect sperm function and quality

Apr 12, 2019

Weirdly shaped mouse sperm can be used to tell species apart

Dec 4, 2018

There isn't one kind of 'good sperm' – it depends on other qualities in the male

Aug 16, 2018

Kamikaze sperm and four-headed penises – the hidden ways animals win the mating game

Feb 15, 2018
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