Sperm Whale (Physeter catodon)
The tasty titbits that sperm whales savour over live in deep water. To swim that deep, they have to be able to withstand huge buoyancy forces. To enable sperm whales to dive into the depths, nature found a solution: It gave sperm whales a 2,000 kg spermaceti, found in the whale’ head, that is lighter than ...
»more...