Portal:Cetaceans/Did you know/7


 * ...the Humpback Whales song is produced by them forcing air through their massive nasal cavities


 * ...baleen from the Mysticeti whales mouths was used to stiffen parts of women's stays and dresses, like corsets


 * ...the Sperm Whale was named after the milky-white substance spermaceti found in its head and originally mistaken for sperm.


 * ...the Beluga Whale's milkfat is so high, the calf gains up to 2 kilograms per day on the diet. It is so fatty that the colour is green.


 * ...the Blue Whale has the largest penis of any animal on earth, estimated at over 2 m (more than 6½ feet)