Question

why whales have blow holes​

Answer 1

Answer:

Blue whales possess two blow holes on the top of the head, which enables them to hold their breath for long periods underwater. The blow holes have seals that keep water out during their dives

Explanation:

Whales and dolphins are mammals and breathe air into their lungs, just like we do. ... They breathe through nostrils, called a blowhole, located right on top of their heads. This allows them to take breaths by exposing just the top of their heads to the air while they are swimming or resting under the water.

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Answer 2

Explanation:

Whales and dolphins are mammals and breathe air into their lungs, just like we do. They cannot breathe underwater like fish can as they do not have gills. They breathe through nostrils, called a blowhole, located right on top of their heads.

This allows them to take breaths by exposing just the top of their heads to the air while they are swimming or resting under the water. After each breath, the blowhole is sealed tightly by strong muscles that surround it, so that water cannot get into the whale or dolphin’s lungs.

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