The suborder Odontoceti . This suborder includes the sperm whale killer whale pilot whale and beluga whale. 

Whales range in size from the blue whale the largest animal known to have ever existed at 30 m (98 ft) and 180 tonnes (180 long tons; 200 short tons) to pygmy species such as the pygmy sperm whale at 3.5 m (11 ft). 

Whales inhabit all the world's oceans and number in the millions with annual population growth rate estimates for various species ranging from 3% to 13%. Whales are long-lived humpback whales living for up to 77 years while bowhead whales may live for more than a century.

Details: 

• Ages: 6 years and up