Mammals
Beaver adaptations: how an ecosystem engineer reshapes rivers
Orange iron-rich teeth, a paddle tail, lips that seal behind the teeth and 15-minute dives: how the North American beaver…
The field guide
Mammals
Orange iron-rich teeth, a paddle tail, lips that seal behind the teeth and 15-minute dives: how the North American beaver…
Adaptations
Sloths are slow on purpose. Their low-energy bodies, hooked claws and algae-green fur let them live on a diet of…
Anatomy & appearance
Big ears or small? Two trunk fingers or one? A side-by-side guide to telling African savanna, African forest and Asian…
Comparisons
A male lion weighs 150 to 260 kg and stands about 1.2 m at the shoulder. See how lions measure…
Adaptations
Snow leopards survive the high mountains of Asia with a huge tail, furry snowshoe paws and a big warming nose.…
Speed
The fastest cheetah ever tracked in the wild hit 93 km/h (58 mph). Here is how scientists measured it, why…
Adaptations
The Sunda tiger is the smallest living tiger. Meet its key adaptations, see how big it gets, and learn why…
Behaviour
Lions kill other lions fairly often, mostly cubs after new males take over a pride, but they rarely eat them.…
Records & rankings
A male ostrich stands 2.1 to 2.7 m tall, up to about a metre taller than an average man, and…
Adaptations
The 3 key adaptations of a kangaroo, sorted into structural, behavioural and physiological, with a labelled diagram, myths, a quiz…
Anatomy & appearance
A shadow sweeps across a backyard. The hens scatter and someone shouts “chicken hawk!” But which bird was it? There…
Senses
Nobody has measured how far a lion can smell. Here is what lions really use their noses for, and how…