Cool sperm: why some placental mammals have a scrotum

@article{Lovegrove2014CoolSW,
  title={Cool sperm: why some placental mammals have a scrotum},
  author={B. Lovegrove},
  journal={Journal of Evolutionary Biology},
  year={2014},
  volume={27}
}
  • B. Lovegrove
  • Published 2014
  • Biology, Medicine
  • Journal of Evolutionary Biology
  • Throughout the Cenozoic, the fitness benefits of the scrotum in placental mammals presumably outweighed the fitness costs through damage, yet a definitive hypothesis for its evolution remains elusive. Here, I present an hypothesis (Endothermic Pulses Hypothesis) which argues that the evolution of the scrotum was driven by Cenozoic pulses in endothermy, that is, increases in normothermic body temperature, which occurred in Boreotheria (rodents, primates, lagomorphs, carnivores, bats… CONTINUE READING
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