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Brittle stars are eyeless, brainless animals that spend their time hanging out in dark crevices of coral reefs. But despite all this, it seems that they can still see…using their skin!

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Sources:
https://royalsocietypublishing.org/do…
https://www.nature.com/articles/d4158…
https://www.nature.com/articles/35090573
https://www.ncbi.nlm.nih.gov/pmc/arti…
https://www.sciencedirect.com/science…
https://www.mdpi.com/2077-1312/6/4/11…
https://royalsocietypublishing.org/do…
https://www.frontiersin.org/articles/…

Images:
https://www.eurekalert.org/multimedia…
https://www.eurekalert.org/multimedia…
https://www.eurekalert.org/multimedia…
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https://commons.wikimedia.org/wiki/Fi…
https://www.istockphoto.com/vector/un…
https://www.istockphoto.com/photo/und…
https://www.istockphoto.com/photo/a-r…
https://www.istockphoto.com/photo/bri…
https://www.istockphoto.com/photo/goo…
https://www.istockphoto.com/photo/oph…
https://www.istockphoto.com/photo/neo…