How much do you know about dolphins?

NTD Newsroom
By NTD Newsroom
January 7, 2017Entertainment
How much do you know about dolphins?

1.Dolphins use echolocation, often known as sonar, to see where obstacles are underwater.


2.Dolphins are warm-blooded mammals, not a cold-blooded fish. They have a blowhole on top of their heads, so they stay 15-20 feet below the water, and come up periodically to breathe.


3.Dolphins have a huge lung capacity, and can be under water for 15 minutes.


4. Dolphins have their own language. They use a combination of clicks and other sounds to communicate, which they use to coordinate activities, or teach other dolphins how to do things.


5.Dolphins are always alert; they sleep with only one eye open, and half of their brain shutting down at a time.