Opus 200 by Isaac Asimov

Author:Isaac Asimov [Unknown]
Format: epub, mobi
Tags: Science fiction, General, Fiction, Science Fiction & Fantasy, Science, Literary Criticism
ISBN: 9780395276259
Publisher: Houghton Mifflin
Published: 2010-01-21T16:11:29+00:00

OPUS 200 217

of the family. It needs to fear no other animal but the

killer whale—and, of course, man.

The crab-eater seal, despite its name, lives on krill.

It is the most common of the Antarctic seals* and num-

bers 5,000,000 to 8,000,000.

The most thoroughly Antarctic of the seals, how-

ever, is the Weddell seal. It sticks close to the shores

of Antarctica, while the other seals range well out to

sea. The Weddell seal finds safety beneath the coastal

ice, breaking holes in it to breathe through. It can

dive to a depth of 600 meters and can remain sub-

merged for nearly an hour. Ordinarily, however, it

comes up for air every ten to thirty minutes. (The

female spends considerable time on top of the ice. for

only there can she feed her voung.)

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