Tech

Staring death in the face: Chimpanzees are drawn to skulls of their own species

Enlarge / A chimpanzee named Ayumu participates in an eye-tracking session in an experimental booth. (credit: A. Goncalves et al., 2022) Swiss primatologist Christophe Boesch once commented on a picture of a chimpanzee skull, pondering, “What goes on in the chimpanzee’s mind when they see such a sight in the forest? ” We might not yet […]

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Figaro the cockatoo is back and combining tools to “golf” for nutty reward

Figaro the cockatoo displays his “primate level” combination tool-using skills by playing a cockatoo version of “golf, ” and choosing the correct hole for a cashew reward. Two other cockatoos figured out different tool-using techniques to achieve the same result. (Goffin Lab) Figaro the cockatoo displays his “primate level” combination tool-using skills by playing a […]

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Watch this mama chimp treat her son’s open wound by applying insect “poultice”

A chimp named Suzee inspects a wound on the foot of her adolescent son, Sia, then catches an insect out of the air, puts it in her mouth, presses it between her lips, and applies it to the wound while the girl daughter, Sassandra, observes her. (Alessandra Mascaro) In November 2019, Alessandra Mascaro was observing […]

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What cats’ love of boxes and squares can tell us about their visual perception

Enlarge / Like most cats, nothing delights Ariel more than an empty box in which to lounge. This might tell us something about feline visual perception of shapes and contours, per a new study in Applied Animal Behaviour Science. (credit: Sean Carroll) It is a truth universally acknowledged—at least by those of the feline persuasion—that […]

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Cuttlefish can pass the marshmallow test

Enlarge / A common cuttlefish, Sepia officianalis, in the Marine Resources Center at the Marine Biological Laboratory, Woods Hole, MA. A new study finds the cuttlefish can delay gratification—a key feature of the famous “marshmallow test.” (credit: Alexandra Schnell) Certain species show a remarkable ability to delay gratification, notably great apes, corvids, and parrots, while […]