There are many studies out there that compare the size of brains from one living thing to the next.
Dolphins are considered to be one of the most social animals in the world. Dolphins may greet as a way to socialize.
Interesting facts about Pink Amazon River Dolphin
One of the characteristics shared by most mammals is that they take care of their babies while they are young to teach them the necessary skills to get their food.
Drawing a dolphin is very easy, just follow the four steps below. Step 1. Draw the body of the dolphin.