In addition to being the largest member of the mammal family, the blue whale is also the largest creature known to have ever inhabited the planet. This marine giant grows up to 105 feet in length, can weigh up to 200 ton... More » Pets & Animals Mammals Marine Mammals

As of 2014, whale sharks are the largest known species of fish. They are almost as large as many actual whales and even dinosaurs. Adult whale sharks are at least 25 feet long and weigh up to 20,000 pounds. The largest r... More » Pets & Animals Marine Life Sharks

Whale sharks are the largest living fish, with a maximum weight of 34 tons and a maximum length of 67 feet. They are filter feeders equipped with special filter structures in their enlarged gills. They have a global dist... More » Pets & Animals Marine Life Sharks

As of 2015, endangered species of whales are the blue whale, the fin whale, the sei whale and the North Atlantic right whale, according to the World Wildlife Fund. The major threats to these whale species include habitat... More »

Blue whale hunting is banned by the International Whaling Commission, and the blue whale is listed as endangered by the IUCN Red List of Endangered Species and the U.S. Endangered Species Act as of 2014. Other conservati... More »

At 170 to 200 tons, the blue whale is larger than any dinosaur known to have lived. The largest dinosaur lived in the Mesozoic Era and was the Argentinosaurus, which weighed up to 99 tons. More »

The blue whale is endangered because it was hunted almost to extinction in the late 19th and early 20th century. Though the International Whaling Commission banned the hunting of blue whales in 1966, some countries conti... More » Pets & Animals Mammals Marine Mammals