Blue-footed boobies are most known for their mating dance, but did you know food storage influences sibling aggression among their young? Also, young chicks are only fed until after the oldest/biggest chick is full.
Siblicide is a term that is used when an older chick kills the other(s) to obtain more food for themselves. For example, like the Sand Shark embryos that eat each other in the womb.
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