111,111,111 × 111,111,111 = 12,345,678,987,654,321.

The rubber hand illusion shows how easily the brain can adopt a fake limb.

Fact #1465 · Science

Vaccines train the immune system to recognize pathogens.

Fact #64 · Science

In 1996, Dolly the sheep became the first cloned mammal from an adult cell.

Fact #1019 · Science

The Late Cretaceous period featured diverse dinosaur species.

Fact #720 · Science

The Earth's magnetic field is generated by its outer core.

Fact #331 · Science

Energy and mass are interchangeable.

Fact #1847 · Science

The development of anesthesia made complex surgery possible.

Fact #1190 · Science

Nothing can travel faster than light in a vacuum.

Fact #1739 · Science