The Sumerians developed one of the earliest known writing systems.

A king cobra can raise a third of its body off the ground.

Fact #421 · Human Body

Multitasking often reduces overall task performance.

Fact #950 · Human Body

The first forests appeared during the Devonian period.

Fact #710 · Human Body

The vaccination syringe improved medical delivery methods.

Fact #1576 · Human Body

The Earth's inner core is solid despite extreme heat.

Fact #217 · Human Body

Learning involves changes in neural connections.

Fact #986 · Human Body

Grizzly bears can run at speeds over 30 miles per hour.

Fact #1260 · Human Body

Operation Mongoose aimed to destabilize Cuba in the early 1960s.

Fact #1069 · Human Body