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How Did The Starfish Become A Star? 500-Million-Year-Old Fossil Solves Evolutionary Mystery
Starfish are beautiful organisms, but if you think about it a little deeper, they’re also really strange. As echinoderms, they’re relatives of sea cucumbers and urchins, meaning at one point they ...
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Discover How Starfish Gained Five Arms After Evolving From 500-Million-Year-Old Ancestor
The five-armed figure of many starfish has to be one of the most iconic underwater curiosities in the world. How did these marine invertebrates attain such a bizarre body? It turns out that they weren ...
Riah Evin, a biologist at the California Academy of Sciences’ Steinhart Aquarium, propagates endangered Sunflower Sea Stars on Nov. 20 in San Francisco. (Karl Mondon/Bay Area News Group) For the last ...
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