SPECIES LIST 46 - 54
Polar Waters

46. Lion's mane jellyfish - Cyanea capillata - The largest jelly known, this species grows up to 8 feet wide and 1000 feet long, and has up to 12,000 stinging tentacles. When an animal comes in contact with these tentacles, it is stung and injected with a neurotoxin (nerve poison).

47. Icefish - Family Channichthyidae - Members of this Antarctic family have a kind of antifreeze that allows them to survive in the coldest water, even that below freezing. They have no hemoglobin (the oxygen-carrying blood pigment) but in the low temperatures at which they live, their blood carries enough dissolved oxygen for life.

48. Weddell seal - Leptonychotes weddelli - Seals survive extremely cold temperatures by having a thick layer of blubber which insulates them. True seals lack external ears and must drag their hind flippers. This Antarctic seal weighs 900 to 1,000 pounds; it searches around sea ice for prey, usually fish and squid. Its main predator is the killer whale. See 35 and 49.

49. Ringed seal - Phoca hispida - Ringed seals usually live in ice-covered waters. They live on both seasonal and permanent ice. They can be found in all seas of the Arctic ocean and in some northern Finnish and Russian lakes. The world population is estimated at 5 million, with 1 to 1.5 million in Alaskan waters. See 35 and 48.

50. Serpent star - Class Ophiuroidea - Serpent stars occur in warm, cold, deep, and shallow waters. Like most echinoderms, they cannot tolerate marked changes in salinity, temperature, or light intensity. They use their spines and tube feet in locomotion, may move forward with any part of the body and reverse direction without turning around. See 30.

51. Antarctic cod - Family Nototheniidae - The Antarctic cods are a large, diverse family, dominating the Antarctic fish fauna. Most are bottom dwellers feeding on invertebrates and occasionally algae; some live associated with sea ice, but others live in midwater. They are a very important food for most penguins, seals and cetaceans.

52. Arctic sea spider - Class Pycnogonida - Related to spiders but not one, the Arctic sea spider lives in very cold waters. They walk on the ocean bottom on slender legs, or crawl among plants and animals; some may tread water. They have a very small body; the internal organs extend out into the legs.

53. Bat Star - Patiria miniata - Starfish can digest food outside of the body by extruding their stomach around prey. They move by walking with their tube feet. See 29 and 37.

54. Long tentacle comb jelly - Phylum Ctenophora - Transparent, gelatinous planktonic animals, ctenophores have cells which, instead of stinging, have a sticky tentacle to which food particles adhere to be drawn into the mouth.


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