Dolphins are highly intelligent marine mammals, other than that natural systems that complement the body is very complex. The dolphins live and work in groups called swarms. They often play together. A dolphin can not sleep well under water. He could drown. Therefore, he was half asleep a few moments in a day. The dolphins eat squid and fish such as gray mullet. Sometimes dolphins herding a shoal of fish for easy capture. Dolphins find a way to transmit sound in the water. If the voice of an object, the sound would be reflected back as echoes. Sometimes, noise in the ocean oil drilling can be confusing due to the dolphins. They will have difficulty in sending and receiving messages.
Here is a page coloring pictures of dolphins. You can print dolphin pictures to be colored, or you can keep it inside your computer.
