About a week after giving birth to a new pup, Antarctic fur seal females leave their newborn to feed at sea for several days, then return to nurse. While fur seal pups wait for their mother’s return, their curious nature leads the pups to explore the coastline and begin short swims with other pups, learning important skills for later in life. Mothers travel increasingly great distances to find swarms of krill, a shrimp-like crustacean, their primary food source in the region. Krill is the keystone of the South Georgia ecosystem where 95% of Antarctic fur seals give birth, feeding nearly all vertebrates in the island’s vicinity including penguins and whales. However, krill populations are declining rapidly with warming, acidifying water and increased catch by krill fisheries. The waters surrounding South Georgia are now a marine protected area consisting of a 30-kilometer-wide no-take-zone to protect the feeding interests of animals such as seals but there is growing evidence that seals are foraging outside the MPA to find available food. Antarctic fur seal pups and young males share the shoreline of South Georgia beaches, congregating between November and April each year, then migrate to live in open waters for winter.

Waiting for Her Return

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Holding on to Melting Ice