It's often thought that the megalodon would've looked a lot like a great white shark, but bigger. But scientists now think the enormous creature looked "closer in shape to a lemon shark or even a ...

The steel frame, the workers and the crane act as positive shapes. They are almost in silhouette and this unites them through colour. There is stark contrast with the white negative shapes created ...

Both black and white rhinoceroses are actually gray. They are different not in color but in lip shape. The black rhino has a pointed upper lip, while its white relative has a squared lip.