Question

what special adaptations can be seen in the dolphins ​

Answer 1

Answer:

Physical adaptations include a blowhole located at the top of the body, which allows a dolphin to come up to the surface, easily take in air, and continue swimming. While asleep, half of a dolphin's brain remains awake. The active half signals when it's time for the dolphin to surface and take in air.

Answer 2

These adaptations enable a dolphin to conserve oxygen. Dolphins, like other marine mammals, have a slower heart rate while diving. During a dive, blood is shunted away from tissues tolerant of low oxygen levels toward the heart and brain, which require a constant supply of oxygen.