Marine Mammal Headquarters THREAT LEVEL: EXTINCT animals The following animals are considered EXTINCT by the International Union for Conservation and Natural Resources (IUCN): -TSF- THREAT LEVEL: EXTINCT IN THE WILD animals The following animals are considered EXTINCT by the International Union for Conservation and Natural Resources (IUCN): -TSF- THREAT LEVEL: critically endangered animals The following animals are considered CRITICALLY ENDANGERED by the International Union for Conservation and Natural Resources (IUCN): -TSF- THREAT LEVEL: endangered animals The following animals are considered ENDANGERED by the International Union for Conservation and Natural Resources (IUCN): -TSF- THREAT LEVEL: vulnerable animals The following animals are considered VULNERABLE by the International Union for Conservation and Natural Resources (IUCN): -TSF- THREAT LEVEL: near threatened animals The following animals are considered NEAR THREATENED by the International Union for Conservation and Natural Resources (IUCN): -TSF- THREAT LEVEL: least concern animals The following animals are considered LEAST CONCERN by the International Union for Conservation and Natural Resources (IUCN): -TSF- THREAT LEVEL: data incomplete on these animals The following animals have insufficient enough research to fully determine their vulnerability and are classified as DATA INCOMPLETE by the International What is the largest seal? Northern elephant seals are the largest phocid, or “true” seal, in the Northern Hemisphere. Fully grown males can reach lengths What are spring and neap tides? A spring tide—popularly known as a "King Tide"—refers to the 'springing forth' of the tide during new and full moon. Which whale is named for a painter? One of the elusive beaked whales, the Sowerby’s beaked whale is named for James Sowerby (1757-1822), an artist primarily known Bearded Seal (Erignathus barbatus) Bearded seals are members of the "true seal" family, Phocidae. They have a small head, large body, and small, square North Atlantic (Northern) Right whale (Eubalaena glacialis) Right whales are large baleen whales. Females are larger than males. Distinguishing features include a stocky body, black coloration (although Order: Carnivora (Ursidae, Mustelidae, Otariidae, Phocidae, Odobenidae) There are five families of marine mammals within the Order Carnivora that can be divided into two groups: pinnipeds ("flipper-footed") 1 2 3 … 86 Next » What is a Sverdrup? As revealed in our explanation about the Gulf Stream, the Sverdrup is used to measure a massive volume of water. Risso’s Dolphin (Grampus griseus) Risso's dolphins, sometimes called "gray dolphins," have a robust body with a narrow tailstock. These medium sized cetaceans can reach What cetacean is named for a famous polyglot and malacologist? The Dall's porpoise is named for American naturalist William Healey Dall (1845-1927) who published more than 1,600 research papers and A “hookfin porpoise” is actually which animal? Even though they are dolphins and not porpoises, the Pacific White-Sided Dolphin is sometimes referred to as a “hookfin porpoise.” Blainville’s Beaked Whale (Mesoplodon densirostris) Blainville's beaked whales, sometimes known as the "dense-beaked whale," are little known members of the beaked whale family (Ziphiidae). As West Indian manatee (Trichechus manatus) The West Indian manatee is currently divided into two subspecies: the Florida and Antillean manatees. Florida manatees (T. m. latirostris) are 1 2 3 … 86 Next » RELATED STORIES:Massachusetts' efforts to stop next whale extinction
