Submitted by insink2300 t3_11drr8s in askscience
tayman12 t1_jac8kq8 wrote
Reply to comment by Ieatadapoopoo in Why does temperature determine the sex of certain egg laying animals like crocodiles? by insink2300
Only thing I can think of off the top of my head is that the temperature is linked to food availability, when food is available its fine to make a bunch of females since their off spring wont have to compete for food, but if food is scarce then its better to make males, the ones best suited for survival will end up getting to mate, so its as if nature is using the food scarcity as a filter to get rid of bad genes
hananobira t1_jacni22 wrote
Other way around. Mothers are more likely to have daughters when the food supply is low. Females are hardier, are more resistant to famine and disease, and live longer. Mothers are more likely to have sons when they are living in plenty, because sons are less likely to survive childhood and require greater resources to grow taller and stronger.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2602810/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3367790/
https://www.sciencedaily.com/releases/2011/09/110927192352.htm
Yaver_Mbizi t1_jad4hsn wrote
Does it work the same way for reptiles, though?
tayman12 t1_jacx4x5 wrote
alright, considering i know nothing about these animals or biology i am gonna call that a win
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