FACT ROCK

Dogs can learn up to 1,000 words and gestures—some border collies have been tested with vocabularies rivaling toddlers.

Sea otters hold hands while sleeping to avoid drifting apart.

Cats knead with their paws as a leftover instinct from kittenhood to stimulate milk flow.

Wolves use body language and eye contact to communicate and maintain pack order.

Bowerbirds build elaborate “love nests” decorated with colorful objects to impress mates.

Giraffes hum to each other at night, likely to stay connected with their herd.

Some chimpanzees perform “rain dances”, displaying excitement and awe during storms.

Parrots name their chicks with unique calls that the babies respond to for life

Pigeons can recognize themselves in mirrors, a sign of self-awareness.

Bonobos resolve conflict with affection, often using hugs and physical touch instead of aggression.

10. Bees Occan solve simple math problems and understand the concept of zero.

Octopuses use tools, like coconut shells, for shelter—one of the only invertebrates known to do so.