Comparisons
How strong is a chimpanzee? You vs a chimp, by the numbers
Chimp muscle makes about 1.35 times the force and power of human muscle of the same size (O'Neill et al.…
Animal group
Mammalia
Mammals are a diverse group of warm-blooded animals known for their unique characteristics, such as having hair or fur on their bodies and producing milk to feed their young. They range from tiny creatures like mice and bats to some of the largest animals on Earth, like elephants and whales. Mammals live in various habitats, from dense forests and vast oceans to arid deserts and snowy mountain peaks. Whether it’s the playful dolphins in the sea, the majestic lions in the savannah, or the curious monkeys in the jungle, mammals play a vital role in the balance of nature. They are fascinating creatures, each with its own set of behaviors, diets, and adaptations that help them thrive in their environments.
57 animals116 articles
Comparisons
Chimp muscle makes about 1.35 times the force and power of human muscle of the same size (O'Neill et al.…
Strength & bite force
A captive lioness bit a sensor with 1,594 newtons, about 163 kg of force. No one has ever measured a…
Strength & bite force
Grizzly bears are powerful diggers and hunters, but their lifting strength and bite force have never been measured. Here is…
Strength & bite force
Pound for pound, the jaguar has the strongest bite of the big cats. A 2005 skull model puts its canine…
Conservation & population
About 140,000 giraffes live wild in Africa, according to the Giraffe Conservation Foundation's 2025 count. The IUCN lists the giraffe…
Size & weight
An adult male Bengal tiger weighs about 220 kg (480 lb) and a female about 140 kg (300 lb). The…
Records & rankings
Adult male giraffes grow up to 5.5 m (18 ft) tall and females up to 4.3 m (14 ft). A…
Records & rankings
An adult tiger usually weighs 75 to 325 kg (165 to 716 lb). Amur males are the heaviest wild tigers…
Speed
Polar bears can swim at about 10 km/h (6 mph), but they are built for distance, not speed. One tracked…
Records & rankings
Adult male polar bears usually weigh 350–600 kg and stand about 3 m tall on their hind legs; females weigh…
Adaptations
Under their fur, polar bears have black skin. The fur itself is clear and only looks white because it scatters…
Predators & threats
Adult polar bears have almost no predators apart from people and other polar bears. Cubs are sometimes killed by adult…