Sperm whales dive to depths of nearly 2,250 metres on a single breath, their heads packed with a waxy oil called spermaceti that solidifies under cold pressure and helps them sink like a stone toward prey they hunt in total darkness

Sperm whales dive to depths of nearly 2,250 metres on a single breath, their heads packed with a waxy oil called spermaceti that solidifies under cold pressure and helps them sink like a stone toward prey they hunt in total darkness

A sperm whale can hold its breath for over an hour and drop nearly 2,250 metres below the surface — deeper than the height of seven Eiffel Towers stacked end to end — on a single lungful of air...
Silicon Canals