Forget his n’ hers watches this Valentine’s Day: A species of lemur prefers a set of matching scents. In a move that can only make master perfumers green with envy, pairs of Coquerel’s sifakas (Propithecus coquereli) that have mated and produced offspring alter their natural scents to smell alike. Primatologists at the Duke Lemur Center in Durham,…


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Finding true love is difficult no matter what species you were born into—but at least humans don’t have to worry about being eaten on a first date. Black widow spider and scorpion females famously kill and sometimes eat males after sex. Of course, not all animal courtship is risky or dominated by females, “but in the science…


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