Both dolphins and whales have blowholes because they do not have noses to breathe but a hole to breathe when they reach the surface of the water.Therefore,this is an adaptation for both animals.
Whales and dolphins.
All types of whales have blowholes because they need them to breathe. As we have noses, whales have blowholes. Porpoises and dolphins have blowholes as well.
Whales and dolphins are mammals. They both have at least one hair/fur on them and they breathe air (thats why the have blowholes).
There are currently 88 known species of whales, dolphins, and porpoises that have blowholes, so there are potentially 88 blowholes in the world.
It is beacouse of their blowholes
Usually whales. Most fish don't have a blowhole because they have gills. Only mammals such as dolphins and whales have blowholes.
No whale sharks don't have blow holes they have gills like other sharks
Dolphins (and whales, etc) breath through the blow holes on their head.
Toothed whales, like dolphins and porpoises, typically have one blowhole on top of their heads. This singular blowhole allows them to quickly surface, take a breath, and expel air before diving back underwater.
Whales don't need to breathe through their mouths. Instead, they breathe through their blowholes on top of their heads, like the dolphins and porpoises.
Whales don't need to breathe through their mouths. Instead, they breathe through their blowholes on top of their heads, like the dolphins and porpoises.
Dolphins have tight blowholes.