What is an exoskeleton?

Bones create an internal armature that on some animals, such as an elephant or cow, appear quite stiff and rigid, but on others, such as the cheetah, they are gracile, loose and flexible, allowing for

All they need is a specialised organ, some calcium-rich food and time

Discover the remarkable resilience of Earth’s oldest and hardiest animals, overcoming mass extinctions and conquering the planet’s ever-changing climate

THERE WOULD BE LITTLE POINT IN having the ability to lethally poison a predator if you accidentally poisoned yourself and ended up just as dead. In the case of poison dart frogs, they dodge being pois

What the scientists are saying… Neanderthals feasted ...

Sketching giant animals is all about scale. Being close to these two giants during a museum visit, I chose a sight-sized approach for both the blue whale and the moa (opposite). Careful planning at th