A strange thing happened in Alaska. Around half of the common murres, those tuxedo-looking seabirds, died between 2014 and 2016. This isn't the first time they've had trouble, but it's the worst. Scientists blamed a big heat wave in the ocean, called "the Blob, " which made their food scarce. And even though the heat wave ended, the murres didn't bounce back like they used to. It's like they're stuck in a time warp, and scientists are trying to figure out why.

The murres' favorite food, Pacific cod, also took a hit. Their numbers dropped by 80%, which didn't help the murres' situation. Before the heat wave, Alaska had a quarter of the world's murres. But now, some colonies have lost up to 78% of their birds.

Researchers have been keeping an eye on the murres since 2016, but they're still not seeing a comeback. It's not just food that's the problem. Murres take a while to have babies, and they can't just move to a new home easily. Plus, the ocean is changing fast, and not all animals can keep up.

But it's not all doom and gloom. Some animals aren't bothered by the heat waves. And scientists are trying to learn more about how different creatures handle these changes. After all, understanding what's happening now can help us figure out what might happen next.

The Murre Mystery: Why Alaska's Seabirds Aren't Coming Back

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