Walruses prefer sea ice for molting, mating, nursing, and
resting between dives for food
Trouble is, as the century
progresses, there’s going to be far less ice around. The US government in
2008 listed polar bears as a threatened species because of diminished sea
ice brought on by climate warning. That same year the Center for Biological
Diversity petitioned to do the same for walruses. Historically hunted for
ivory tusks, meat, and blubber, walruses since 1972 have been shielded by
the Marine Mammal Protection Act.
An Endangered Species Act
listing would require the U.S. Fish and Wildlife Service to designate critical
habitat for their recovery. Inaccessibility protected walruses for decades, but
a rapid decline in summer sea ice has made them vulnerable.
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