Life cycle & reproduction
How long is an elephant pregnant for?
Elephants are pregnant for about 18 to 22 months, with a measured average of about 640 days. It is the…
IUCN Red List category
Endangered
Animals the IUCN Red List classes as Endangered, and what is known about their numbers.
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Articles
Conservation & population
Why are Siberian tigers endangered?
Poaching is the main reason Siberian (Amur) tigers are endangered, followed by a shortage of prey, roads and disease. About…
Conservation & population
Are Bengal tigers endangered?
Bengal tigers are Endangered (IUCN 2022), not critically endangered. India, Nepal and Bangladesh have all counted more tigers in their…
Speed
How fast can a tiger run?
Tigers sprint at about 49–65 km/h (30–40 mph) in short bursts: faster than any human, about as fast as lions,…
Anatomy & appearance
What Is An Okapi
The okapi was first discovered by Europeans in 1901 when British explorer Harry Johnston came across it during his expedition…
Adaptations
What are the adaptations of a tiger?
Stripes that look green to deer, night vision about six times better than ours, 10 cm claws and strong swimming:…
Diet & feeding
What do Siberian tigers eat?
Siberian (Amur) tigers live mainly on wild boar, red deer, roe deer and sika deer, making a kill about once…
Speed
How fast can an elephant run?
Elephants have been timed at up to about 25 km/h (15 mph). The popular 40 km/h figure for African elephants…
Anatomy & appearance
How long is a blue whale’s tongue?
No one has published a reliable blue whale tongue length. Here's what scientists do know: the tongue turns inside out…
Comparisons
How Big Is a Blue Whale? Length, Weight and Size Comparisons
The biggest blue whales reach about 33 m (108 ft) and 150 tonnes, and females are bigger than males. Sizes…
Comparisons
Tiger vs lion: who would win?
Wild tigers and lions never meet, so nobody really knows who would win. On paper the tiger is heavier on…
Comparisons
Tiger vs grizzly bear: who would win?
Tigers and grizzly bears live on different continents, so nobody knows who would win. A big Amur tiger and a…