Baleen Whales Baleen Whales make up the majority of them. They have a sieve structure in the jaw area that allows them to easily filter food out of water.
Toothed Whales Toothed Whales are carnivorous and as their name implies they have teeth that allow them to easily hunt their prey.
Blue whales: Average adult length 25m (males) 26.2 m (females) Average adult body weight 100 -120 tonnes
Southern Right whale: Average adult length 20m. Average adult mass unknown, up to a maximum of 96 tonnes.
Sei whale: Average adult body length 16m. Average body mass 13 tonnes.
Humpback whale: Average adult body length 12.9 m (males) 13.7 m (females). Average weight 25 - 35 tonnes, maximum of around 48 tonnes.
Minke whale: Average adult length 9m. Average adult body weight 7 tonnes.
Fin whale: Average adult body length 20m. Average adult body mass 50 tonnes.
Sperm whale: Average adult body length 16m. Average adult body mass 35 tonnes.