A clam presumed extinct for 40,000 years has been found alive
Researchers still don’t know how the bivalve evaded science for so long
![A photo of Cymatioa cooki resting on an underwater rock](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2022/11/111022_ag_living-fossil-clam_feat.jpg?fit=1030%2C580&ssl=1)
This tiny Cymatioa cooki extends the foot it uses to move around the sand beyond its translucent, white shell. Until now, the clam had been known only from fossils.
J. Goddard