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A tiny nocturnal worm native to the Mediterranean Sea has eyes as sharp as mammals, according to neuro and marine biologist Anders Garm from the University of...
Scientists say a tiny, nocturnal worm that lives in the Mediterranean Sea has eyes so large that if a human had them, they “would need a big sturdy wheelbarrow and brawny arms to lug around the extra 100kg [220 pounds].”
<p><strong>Scientists are amazed at the discovery of a bristle worm with such sharp-seeing eyes that they can measure up to those of mammals and octopuses. The researchers from University of Copenhagen and Lund University suspect that these marine worms may have a secretive language, which uses UV light only seen by their own species. The advanced vision of such a primitive creature helps to finally settle an epic debate about the evolution of eyes.</strong></p>
Cnidarians, the animal group which includes jellyfish, are brainless, instead getting by with a "dispersed" central nervous system
Turns out, jellyfish are not just simple, pulsating blobs—they can learn from experience.