The orca is a large, toothed whale that belongs to the dolphin family. Its black and white colouring makes its unmistakable. Animals swimming under it don't recognise it, because the surface of the wa...

The orca is a large, toothed whale that belongs to the dolphin family. Its black and white colouring makes its unmistakable. Animals swimming under it don't recognise it, because the surface of the wa...