Sawfish, also called carpenter sharks, are a group of large rays that have a long, flat nose with sharp teeth arranged in a saw-like pattern. These teeth help them catch food. Some sawfish can grow up to 7–7.6 meters (23–25 feet) long.
Manta rays are large rays in the genus Mobula (previously called Manta). Three species are known: M. birostris, the largest at 7 meters (23 feet) wide; M.
The Caribbean monk seal (Neomonachus tropicalis), also called the West Indian seal or sea wolf, was a type of seal that lived in the Caribbean Sea and is now extinct. Its natural enemies included American crocodiles, large sharks like great white sharks and tiger sharks, and possibly killer whales, though killer whales are rarely seen in the Caribbean. However, humans were the most dangerous threat to the seals.
The Hawaiian monk seal (Neomonachus schauinslandi) is a type of earless seal in the family Phocidae. It is found only in the Hawaiian Islands and is at risk of becoming extinct. This seal is one of two surviving monk seal species.
The Mediterranean monk seal (Monachus monachus) is a type of seal in the family Phocidae. As of 2015, scientists estimate that fewer than 700 of these seals remain, living in three or four separate groups in the Mediterranean Sea. These groups are found mainly in the Aegean Sea, the Madeira archipelago, and the Cabo Blanco area near the border of Mauritania and Western Sahara in the northeastern Atlantic Ocean.
The bowhead whale (Balaena mysticetus), also called the Greenland right whale, Arctic whale, and polar whale, is a type of baleen whale in the family Balaenidae. It is the only living member of the genus Balaena. This whale is found only in Arctic and subarctic waters and is named for its large, triangular skull, which helps it break through ice.
The narwhal (Monodon monoceros) is a type of toothed whale found in the Arctic. It is the only animal in the genus Monodon and one of two living species in the family Monodontidae. The narwhal has a thick body, a short snout, a large rounded head, and a shallow ridge instead of a dorsal fin.
The southern right whale (Eubalaena australis) is a large baleen whale and one of three right whale species in the genus Eubalaena. It lives in the Southern Hemisphere, in oceans between 20° and 60° south. Like its northern relatives, the southern right whale has a broad back with no dorsal fin, a long, curved mouth, and white patches on its head called callosities.
The Antarctic minke whale, also called the southern minke whale (Balaenoptera bonaerensis), is a type of minke whale in the group of baleen whales. It is the second smallest rorqual and the third smallest baleen whale. Scientists first studied this whale in the 1800s, but it was not recognized as a separate species until the 1990s.
Antarctic krill (Euphausia superba) is a type of small, swimming crustacean found in the Southern Ocean near Antarctica. These animals live in large groups called swarms, sometimes with as many as 10,000 to 30,000 individuals in one cubic meter of water. They eat tiny phytoplankton, which use energy from the sun to grow.