5. Humpback whales travel thousands of kilometers in
the summer every year to the Southern Ocean to feed
on krill and cephalopods, such as squid and cuttlefish.
6. Recently, however, when they finally reach their
destination, they find it to be dramatically
different from the Southern Ocean
of earlier years.
7. In the past 50 years, the western Antarctic
Peninsula has warmed at more than four times
the average rate of world-wide climate change.
8. Frontal zones are predicted to move southward
which means that humpback whales will have
to travel 200 to 500 kilometers south to feed.