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Cognition

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Why Do Dogs Tilt Their Heads? New Study Offers Clues

The adorable behavior may be a sign of concentration and memory recall

Female octopuses were far more likely than males to 'throw' objects at others.

Female Octopuses Throw Things at Male Harassers

Scientists observed common Sydney octopuses launching shells and silt at particularly annoying individuals

A study of two dozen common cuttlefish reveals they can recall specific details regardless of age.

Unlike Humans, Cuttlefish Have Sharp Memories Even in Old Age

The cephalopods remember when, where and what they ate until days before death

Before engaging in social behaviors like grooming, bonobos (pictured) employed a "hello" greeting during 90 percent of observed interactions and bid their peers farewell 92 percent of the time.

Bonobos and Chimps Appear to Have ‘Hello’ and ‘Goodbye’ Greetings

Like humans, these apes share salutations to start and end interactions

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