The Indo-Pacific bottlenose dolphin has a short and thick beak that resembles a water bottle, hence the name "bottlenose". But this is not a real nose, its nostrils have evolved into a breathing hole on the top of the head.Dolphins are highly social animals and usually live in groups. The...
Pacific spotted dolphins are very active and expressive, creating large clouds of water. They often leap into the waves, sometimes spinning or flipping in the air, landing on their sides or bellies. They are good fast swimmers, and some individuals may swim together. They like to surf on the ocean w...
During the period starting from the Eocene and continuing to the Oligocene, the ancestors of modern mammals stood out from certain species in the ancient mammal group, and based on this, the first evolution of mammals after entering the Cenozoic took place. Secondary adaptive radiation. As a...
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