Walrus tusks are ivory, as are the
Ma r i t i M e tr i v i a
Lowtide
The geoduck (pronounced gooey-
teeth of hippos, narwhals, sperm whales
By Br y a n He n r y
duck) is a clam weighing up to 12
and some types of wild boars and pounds and found in coastal waters from
warthogs. British Columbia to southern California,
and especially in Puget Sound. Its name
Of the world’s approximately 350 The largest creature without a is from the Puget Salish word “qwidaq.”
species of sharks, only about 18 are backbone is the Atlantic giant squid,
known to be dangerous to man. which can weigh more than two tons Lake Baikal is home to the world’s
and grow up to 60 feet long. only freshwater seal, the nerpa, or Baikal
More reported shark attacks on seal.
humans have occurred on the Pacific Some types of toothed whales have
Coast of North America than anywhere teeth in both jaws, some only in the Mitzi was the name of the dolphin
else in the world. lower jaw. They use their teeth to catch that played Flipper in the movie. In the
squid and fish, but not for chewing. TV series, she was replaced by Suzy and
About half of the 350-plus species All toothed whales swallow their prey Cathy.
of sharks grow no bigger than 40 inches. whole.
One of the smallest is the seven-inch Penguins can go as fast as 25 mph
pygmy spiny shark. A 47-foot-long sperm whale was underwater in pursuit of fish, squid and
once found with a 34-foot-long giant shrimp.
Malacology is the study of squid in its stomach.
mollusks. The jackass penguin is named for its
Whales’ teeth were used as currency braying cry.
Baby seahorses are called colts. by Pacific peoples on the island of Fiji
until the early 1900s. Animals that feed on fish are
The remains of diatoms, hard-shelled ichthyophagous.
algae, are used in making pet litter, A 1-pound lobster is known as a
cosmetics, tooth polish and swimming chicken, 1null to 1¾ pounds a select, and Like parrots, captive dolphins can
pool filters. 2½ to 4 pounds a jumbo. imitate human voices.
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48° No r t h , Ja N u a r y 2010 Pa g e 35
MB_48 Degrees N_4c_7.5x4.875.indd 1 12/9/09 4:59:21 PM
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