Animals of the World

Explanation: The cheetah can reach 120 km/h in just 3 seconds, making it the fastest land animal. However, it can only maintain this speed for short distances (about 500 meters).

Explanation: The lion is nicknamed king of the jungle due to its majestic mane and its position at the top of the food chain.

Explanation: Spiders are arachnids and have 8 legs, unlike insects which have 6.

Explanation: The blue whale can measure up to 30 meters and weigh 170 tons.

Explanation: The ostrich can run up to 70 km/h, making it the fastest bird on land.

Explanation: The cow is a ruminant with 4 gastric compartments: the rumen, reticulum, omasum, and abomasum.

Explanation: The horse can sleep standing up thanks to a locking system in its joints. It only lies down for deep REM sleep.

Explanation: The elephant has the longest gestation of land mammals: approximately 22 months.

Explanation: The bat is the only mammal capable of active flight thanks to its membrane wings. Flying squirrels only glide.

Explanation: The silkworm (Bombyx mori) produces a silk thread to form its cocoon.