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Biology and Medical
Sex determination based on food availability
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[QUOTE="mark!, post: 6643206, member: 538792"] [b][Mentor Note -- Merged accidental double-thread-start][/b] In which animals is sex determination based on either food availability. Females of the Common reed frog have shown to exhibit a sex change, which is thought to occur due to low male density in the environment, so that's not quite what I mean. other animals, when resources are scarce, mothers give birth to fewer males than normal. [MEDIA=youtube]3IaYhG11ckA[/MEDIA] Then there's the Desert Greenland Whiptail lizard, who displays parthenogenesis, but when does it do that? How does the environment affect internal biology, such as the presence of predators? [/QUOTE]
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