Cannibalism is a survival strategy found in various species, from chimpanzees to polar bears. This behavior ranges from ...

Here at IFLScience, we like to answer all manner of questions about the world around us. Sometimes that means tackling the big stuff, and other times it means violating the purity of our internet ...

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This important study identifies species- and sex-specific neuronal cell types and gene expression in the medial preoptic area (MPOA) to help understand the evolutionary divergence of social behaviors.

Gender is identified by the shape of the rear edge of the anal fin. In females this is straight, but males are more convex in shape. Males have a unique copulatory organ with folded structures in ...