The 'curse of knowledge' makes it hard to remember what it was like to not know something — impairing teaching.

Certain fish live in symbiotic relationships with other species.

Fact #535 · Animals

A chimpanzee can use tools to solve problems.

Fact #508 · Animals

Certain birds build hanging nests from woven plant fibers.

Fact #471 · Animals

Some fish can change color to blend with their surroundings.

Fact #392 · Animals

A wolf pack operates with coordinated social behavior.

Fact #488 · Animals

Some marine snails use venom to capture prey.

Fact #432 · Animals

Some plants can survive in salty soil.

Fact #298 · Animals

Some ants cultivate fungus as a food source.

Fact #521 · Animals