Dolphins                                                                                                  Dolphins are the most intelligent animals. There brains is bigger than ours, and they have the biggest cranial mass in the entire world. Instead of thinking that dolphins are fun for entertainment. They have ability that they can even pull-off jokes on other animals! One of the Dolphins that a researcher have seen is when it was plucking a bird’s feather from behind, and tossing manta rays like Frisbees. Really wired to see a Dolphin pull-off that joke!