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Life sciences/Organismal biology/Animals/Vertebrates/Mammals/Primates/Nonhuman primates

Understanding how the five senses evolved can help inform how human sight, smell and taste continue to shift based on the environment, according to three researchers at the 2017 AAAS Annual Meeting in Boston.

When it comes to social hierarchy in wild baboons, top-ranking or “alpha” males have higher stress hormone levels than second-ranking males, suggesting that being at the very top of baboon society may be more costly than previously thought, reports a new study in the 15 July issue of the journal Science.