The Franciscana is one of the worlds smallest dolphins and can be found off of the east coast of South America. These bashful dolphins share many physical traits with river dolphins despite the fact that they are not closely related at all. There is currently not much information available on the population of the Franciscana however... 

The Dugong or otherwise known as the ’sea cow’ is a mammal that lives exclusively underwater and has close genetic ties to the elephant despite its appearance. The Dugong feeds only on sea grass found on the ocean and this is one of the reasons the Dugong is currently classed as vulnerable due to human development destroying... 

The Amazonian manatee is the only fresh water manatee in the world and is found only in the Amazon river basin. This unique species of manatee is currently classed as vulnerable and the exact population numbers are unknown. The last population estimate on the Amazonian manatee was just over 30 years ago where there was an estimated... 

The name given to these guys just about says it all. Fur seals are beautiful marine mammals that have been hunted for the fur they are wearing, so that someone else could wear it too. They have a lovely coat of very fine and thick hair that is well suited for their lives in colder climates. It serves to keep them warm when swimming... 

The Yangtze River Dolphins were at one time widely spread and were found in one place only.. in the three gorges that live in the mouth of the Yangtze River of China The Yangtze River Dolphin can grow to be as large as a large man, one of the biggest of dolphins, and one of the largest cetaceans that exists/existed. Their population... 

Known for being the largest pinniped as well as the biggest member of the Carnivora order, the elephant seal is one of just two species of the animal.  This species was named for its massive size as well as the big proboscis that is seen on the adult males.  This proboscis is used to make large roaring noises to communicate with... 

Platypus is mostly prevalent to Eastern Australia in Tasmania. It is a semi-aquatic mammal. It is one of the five species of monotremes. They are known as the only mammals that lay eggs rather than giving birth to the juvenile. In short, it is the sole representative of the family and genus, though quite a number of pertinent species... 

The sea otter is one of the very smallest marine mammals, and spends most of its life in the sea. Males weigh about 100 pounds and are about five feet long, while the females are smaller weighing about 60-75 pounds and measure just about 3-4 feet long. The sea otters have the thickest fur of any animal, with about 100 thousand hairs... 

Some say the humpback whale is fifty feet long, others that it is more like sixty-five feet long. Either one is a pretty impressive length. Their flippers are very large also, from three feet wide to possibly 16 feet long. Humpback Whale Diving That is a nice size flipper for the female whale to protectively hold above her calf who... 

The killer whales today evolved from mammals that had four legs. Inside the flippers of the whales is a bone structure typical of a four-legged animal’s foreleg and paw. Leg bones, unseen by us, are there buried in the flesh of whales. The tail of the whale is muscle. They most certainly were able to live on land and in the... 

The Gray Whale is a baleen whale. What this means is that they have two blow holes and special plates that they can use to filter their food. Gray Whales are extremely large in size, and grow to as long as 45 feet. Gray Whales make an incredible migration which traverses the entire area from the Arctic Ocean near Alaska, to the... 

Dolphins, along with whales are mammals, and are supposed by researchers and historians to be the remnants of land mammals, which entered the water to live several million years ago. Dolphins have residual legs near where the tail meets the body as you can see in this picture of a dolphin. Dolphins are very fast swimmers due mostly...