Yes they are. In fact they are marine MAMMALS in the Order Cetacea.
dolphins
Yes they do. Marine biology has to do with the oceans inhabitants and dolphins and turtles are part of the oceans.
the Miami dolphins
A list of friendly marine animals includes dolphins, star fish, and turtles.
Whales, dolphins,seals, fish.......
dolphins, bass etc, porpoise (dolphin)
many marine animals such as dolphins
Dolphins are marine mammals, zebras are terrestrial mammals. Zebras are herbivores, but dolphins are carnivores. Thus zebras are prey animals and dolphins are predators. But the biggest difference between these to animals is that they do not look the same.
Rays Sharks Dolphins Snails Turtles Birds (some)
Cetaceans are marine mammals of the order Cetacea which includes whales, dolphins and porpoises.
Cetacean means a marine mammal of the order cetacea. These animals are whales, dolphins, and porpoises. There are several species of each of these animals.
Here is a list of friendly marine animals of the sea dolphins, orcas, beluga whales, different types of fish and plankton.