Animals

Oryxes are able to survive in very harsh conditions.

Their average lifespan is up to four years.

Kiwi bones are heavy, and filled with marrow.

They appeared on Earth quite early, already in the Cambrian, although it is currently debated whether organisms from this period should be classified as snails.

Approximately four thousand people a year are bitten by the Brazilian cottonmouth.

Their black-colored heads play an important role in thermoregulation.

Polar fox fur provides the best isolation among all mammal furs. They tolerate temperatures down to – 94 Fahrenheit.

Two turtles circled the moon. This happened in September 1968 aboard the Zond 5 spacecraft.

Pterodactylus derives from Greek and means “winged finger.”

During the day, a hummingbird's heart beats up to 1,260 times per minute, while at night the rate drops to between 50 and 180 beats per minute.