Senses
Do beluga whales use echolocation?
Yes. Belugas send out high clicks through their melon and listen for echoes to find fish and breathing holes in…
The field guide
Senses
Yes. Belugas send out high clicks through their melon and listen for echoes to find fish and breathing holes in…
Anatomy & appearance
Rhino horns grow back because they are made of keratin and grow from the skin, not the skull. Measured regrowth,…
Predators & threats
Coyotes are intelligent animals, and they are known for their adaptability and survival skills. Despite being skilled hunters and adaptable…
Speed
The Komodo dragon, the biggest lizard in the world, is an amazing animal noted for its size, power, and distinctive…
Size & weight
Adult belugas average about 1,430 kg (3,150 lb), and big males reach about 1,900 kg. Calves weigh 41–59 kg at…
Predators & threats
Only killer whales are known to hunt blue whales; the first confirmed kills were off Australia in 2019 and 2021.…
Records & rankings
The polar bear and the Kodiak brown bear tie as the world's biggest bears. An extinct South American bear, Arctotherium,…
Predators & threats
Penguins are flightless seabirds from the order Sphenisciformes and family Spheniscidea. There are 17 to 19 living species of penguins…
Predators & threats
Crocodiles are large-sized semi-aquatic reptiles found in tropical regions of Asia, Africa, the Americas, and Australia. There are 18 living…
Size & weight
Have you ever heard of the Sulcata tortoise? It’s a big tortoise that lives in dry parts of Africa. Just…
Diet & feeding
Dragonflies are carnivorous insects and specifically feed on small insects. From their aquatic elemental stage, they hunt with their expandable…
Anatomy & appearance
Adult belugas are pure white, 2.6–4.5 m long, with a round, flexible forehead, no dorsal fin and a neck that…