ADVERTISEMENT
Dolphins
Dolphins have the largest body mass to brain ratio, in fact they have the largest brain in the whole animal kingdom. The Dolphins are one of the smartest animals and are extremely friendly. They can be taught to play games and communicate with humans with signs and body languages. Dolphins respond to human orders. Dolphins make sounds when they are happy and they have feelings and emotions. It is also believe that Dolphin can recognize itself in the mirror.