Question

 How water animals communicate in water?

Answer 1

changes in great, pitch and all structure of sounds communicate different messages by emitting clicks or short pulses of sound these marine and mammals can listen for echoes and detect objects underwater this is called and collections of whales and dolphins enhoclation to locate food..

Answer 2

Hey mate....

Here is your answer...

Most of the Marine animals communicate by infrasonic sounds produced by the organisms.
most of them create a difference in the pressure of echo released and does communicate. variations in the pitch and intensity helps the organisms to understand each other

hope my answer will help you.?...