Dolphins and orcas will never evolve onto land
Dolphins and orcas, perfectly adapted to life in the ocean, have likely passed the point of no return when it comes to ever walking the earth again. According to a new study, these marine mammals have undergone such dramatic evolutionary changes for a life underwater that returning to land would be almost impossible. Their bodies are streamlined for swimming, with flippers instead of limbs and a thick layer of blubber for warmth in the cold ocean depths. Their lungs are optimized for extracting oxygen from water, and their eyesight is adapted for seeing clearly underwater. These adaptations, while crucial for survival in the ocean, make living on land extremely challenging, if not entirely impossible.