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Evolutionary theory is that dolphins were a land animal which returned to the sea some millions of years ago. They can breathe on the surface because they have a blowhole which allows them to breathe air. They cannot survive for long out of water because their physiology requires that they be suspended in water and because their skin dries out quickly.
What else can I help you with?
Does dolphins give live birth or lay eggs?
Dolphins are mammals which means they give live birth, under water!
How can dolphins communicate under water?
Dolphins communicate under water by using echolocation
What type of weather environment do dolphins have?
Dolphins live beneath the sea in the water. There is nothing called 'weather' under the ocean's surface.
Can whales and dolphins communicate under water?
Whales and dolphins can't communicate under water
How do Dolphins dive and live under water?
by using their great body strength and lung capacity
If whales and dolphins are mammals how can they live under water for such long periods at a time?
It is beacouse of their blowholes
Do pink dolphins live in salt water or fresh water?
Dolphins can live in both, it depends on their inhabitant.
Are dolphins bored when they are under water?
NO, they play with other dolphins.
Do dolphins live on the surface?
No, they live in the water.
What dolphins live in Lake Erie?
Seriously?? Dolphins live in salt water or in the Amazon.
Where live the dolphins?
dolphins are highly intelligent,,, dolphins live mostly in the ocean in the shallow water,, they can live in any ocean around the would. but some dolphins live in rivers
Do dolphins swallow sea water?
Dolphins live in the sea water, but do not drink it. The ocean water is too salty for the dolphins system to handle.
