Dolphins 'call each other by name'

[Still Waters]

Scientists have found further evidence that dolphins call each other by "name".

Research has revealed that the marine mammals use a unique whistle to identify each other.

A team from the University of St Andrews in Scotland found that when the animals hear their own call played back to them, they respond.

http://www.bbc.co.uk...onment-23410137

[kannin]

ive seen something like this before, dolphins are a very interesting animal, and not to be on a perverted and crude note but arnt they the only other mamals that have intercourse for pleasure not just for reproduction, correct me if im wrong XD