Most people know what turtles are. Little shell backed reptiles that often live in lakes, streams and dank vegetation. When asked what do turtles eat and drink these same people are far less knowledgeable. Turtles are kind of an exotic pet. They are not as widely understood as dogs, cats and other more common house pets.
15 of the Largest Animals in the World. The blue whale (Balaenoptera musculus) is a marine mammal belonging to the suborder of baleen whales. At 30 metres (98 ft) in length and 180 metric tons (200 short tons) or more in weight, it is the largest known animal to have ever existed.
Most people believe that the largest animals to ever exist on Earth were the dinosaurs. However, one of the largest land dinosaurs, the sauropod Argentinosaurus, weighed only about 180,000 pounds (81,647 kg). That's little more than half the size of an adult blue whale. It makes a lot of sense that the world's largest animal would be a sea creature. Land animals have to support their own weight, whereas sea creatures get some help from the water. It is believed that at one time there were more than 200,000 blue whales.