The second chamber is larger and is where digestion takes place. Sperm whales were hunted in the past for spermaceti oil, found only in the head of sperm whales and used in echolocation. Archived from the original on 16 May The spermaceti organ is like a large barrel of spermaceti. Female and young male sperm whales are social and sometimes are seen in pods, or groups, of up to 50 whales. Skeletons of sperm whales show pitting of the bones that is often a sign of decompression sickness in humans. Archived from the original on 7 February
The Behavior of the Whale Orcinus orca:
Piranhas, Nazca Boobies, Glowing Millipedes. Sperm whale range in blue. Moreover, pressure from unregulated fishery activities and maritime transportation, both on local and international scales, has increased over the same timescale. As amended by the Conference of the Parties in,,and Sperm whales are absent from the Red Sea and Black Sea. Philosophical Transactions —Vol. They can swim more than miles a week and recently have expanded their range.