A newborn baby's brain grows to 80% of adult size in the first three years.

An African elephant's ears help regulate its body temperature.

Fact #445 · Human Body

The axolotl can regenerate limbs and spinal tissue.

Fact #893 · Human Body

The Earth's mantle lies between the crust and core.

Fact #301 · Human Body

Your brain uses patterns to recognize faces almost instantly.

Fact #1752 · Human Body

Some birds have hollow bones to reduce body weight for flight.

Fact #889 · Human Body

Dust storms can reduce visibility to near zero.

Fact #850 · Human Body

Your bones are stronger than steel.

Fact #1716 · Human Body

Vaccines train the immune system to recognize pathogens.

Fact #64 · Human Body