Changes
/* Description */
* the males have a unique cooling system for their internal reproductive organs
* whales, along with humans and horses, are some of the few mammal species that do not possess [[baculum]] (penile bone)
* some mysticetes have two blow-holes, but others while odontocetes only have one
* the blow-holes pass air above water, yet resist intense pressure underwater
* they have massive brains, much larger than the brains of other mammals
There are two kinds of whales: toothed whales of the suborder Odontoceti, and whalebone (baleen) whales of the suborder Mysticeti.
*'''Suborder Mysticeti: Baleen whales'''
