What is Blowhole?
A '''blowhole''' is the hole that [[cetacean]]s use to [[breathe]]. It is [[homology|homologous]] to the [[nostrils]] of other [[mammals]].<ref>{{Cite web|url=https://pandasthumb.org/archives/2008/03/whale-evolution.html|title = Whale evolution: The blowhole|date = 18 March 2008}}</ref> When [[whales]] come up to the surface of the water, they release air through the blowhole. [[Water vapor]] in the air condenses. This makes a spray of water. == References == {{reflist}} {{biology-stub}} [[Category:Cetaceans]]