they communicate by using clicking sounds called echolocation
yes u like the sounds u hear like ekk ekkk
calves have to protect them selfs from predators
They communicate by a loud screeching noise that they can only here, but if someone had the right equipment they could here it.
Yes,they are.They swim around in 'schools',which are like a crowd of dolphins swimming together.They are also the only animals besides humans that participate in sexual intercorse for fun...