Question

Whales and dolphines often come up to the water surface. They even release a fountain of water while moving upwards why do they do so?

Answer 1

For removing out the excess water which entered their body while respiration........ Hope it helps u...

Answer 2

Whales and dolphins have lungs for respiration but they live in water. for inhaling and exhaling air, the often come to the surface of water. when they exhale , they release of fountain of water.