a.Sperm whales – 3 species
•Sperm, Dwarf Sperm, Pygmy Sperm
- •Bulbous head contains spermaceti (waxy substance) that may
- function in buoyancy and sound generation
- •Sperm can dive to 3000 m and stay
- under water for up to two hours!
- •Feed on fishes and squids, esp.
- giant squids
•Produce ambergris, undigested material in stomach
b.Toothed whales – 30 species
- •Beaked, Beluga, False Killer,
- Narwhal, Orca, Pilot
•Most common in cold water
- c.Dolphins & Porpoises – 33
•Travel in pods