Another amazing infographic from the Earth Touch this time showing the points and facts about dolphins, the friendly sea creatures.Dolphins are a very smart mammal with a brain of 1.7 kgs whereas the human brain weighs only 1.4 kgs.They move in pods like sardines move in shoals.Dolphins like to eat sardines and they hunt them by making a bait ball. Dolphins break the shoal of the sardines into a smaller group which they can hunt easily and eat.They also make use of their blowholes to create walls of bubbles around the sardines in order to trap them. The dolphins have the best sonar equipment among all the sea creatures since they can hear 10 times the sound that can be heard by a human ear.Read more about these interesting facts on this infographic.