There are many different species of dolphinsbut they all seem to have that cute quality about them (like they're smiling?) Dolphins are really playful creatures, often playing with other dolphins, using seaweed as toys and so on. I also like the fact that they "rescue" drowning people :3
However, certain dolphin species are under threat and are threatened by Human activities such as pesticides, hunting and pollution. I remember hearing about them suffocating on coke rings, so make sure you cut them before you bin them!
Check out some cute pictures below: