Whales under threat as climate change destroys their food supply
Global warming is killing the food humpback whales need to survive, forcing them to make ever longer and more arduous migrations. Scores of whales, emaciated from a lack of krill, are surfacing along the coast, ecologists in South America say. “You can see their bones. They’re sick. They have parasites. We never used to see that,” said marine biologist Cristina Castro as she scanned the horizon for more humpback whales, the species she has studied for the past 18 years.
Whales under threat as climate change destroys their food supplyGlobal warming is killing the food humpback whales need to survive, forcing them to make ever longer and more arduous migrations. Scores of whales, emaciated from a lack of krill, are surfacing along the coast, ecologists in South America say. “You can see their bones. They’re sick. They have parasites. We never used to see that,” said marine biologist Cristina Castro as she scanned the horizon for more humpback whales, the species she has studied for the past 18 years.
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