Atlantic puffin
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Atlantic puffins — sometimes called the clowns of the sea because of their squat bodies and odd waddles — are finding themselves in a particularly unfunny predicament.

Scientists think warming ocean temperatures are driving the puffins’ normal meals of herring away from the coastlines; they’re being replaced with other fish that are too large for puffin fledglings to swallow.

We told you in May that record-breaking Atlantic coastal water temperatures were driving some fish away. And on Friday we quoted Oceana scientist Matthew Huelsenbeck warning that the warming of the oceans is “causing significant changes to marine ecosystems.”