00:00Our eyes are how we take in most of the world around us, but for one creature in the animal
00:08kingdom, its evolutionary path has literally put all of its survival eggs into optics.
00:13This is a close-up image of the Alcyopid polychaete worm. Experts say its eyes weigh 20 times the
00:19weight of the rest of its head, or which Science Alert reports would be about the same if our
00:23human eyes weighed around 110 pounds each. The wildest thing is that the worms feed in
00:29the middle of the night, at the bottom of the ocean, meaning experts really didn't understand
00:33why they would need such big eyes. But now we might finally have an idea. A new study discovered
00:38that this particular marine worm is able to not only see small and distant objects, but
00:42also track them. This is sort of a huge find considering previously only vertebrates, arthropods
00:48and cephalopods were believed to have the ability to do so. Most other worms only have extremely
00:52low resolution basic vision, or direction photoreception, which is essentially just being able to track
00:58the direction light is coming from. The researchers concluded that this extremely small, almost
01:02transparent worm has eyesight that is essentially on par with mice or rats. Previous studies have
01:07concluded that their eyes are also able to pick up ultraviolet wavelengths particularly well,
01:12meaning these deep sea worms might still be hiding some tricks up their ocular sleeves.
01:16So, please add a few other minimizer points.
01:18Thanks for watching.
01:19Have a great day.
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01:22Thanks for the idea.
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