Dolphins and porpoises are aquatic creatures with small sharp teeth that belong to the same order of mammals as whales. There are roughly 50 species of dolphins, including the bottle-nosed and buffeo type, and they are mostly set apart from porpoises by their beak-like snouts and cone-shaped teeth. The porpoise, on the other hand, sports a blunt snout and chisel-shaped teeth. Based simply on their physical make-up, dolphins have been interesting mammals to be observed by both scientists and outdoor enthusiasts. Below are articles on dolphins and the activity of dolphin watching.