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Origin of claws seen in 390-million-year-old | EurekAlert!
www.eurekalert.org
A missing link in the evolution of the front claw of living scorpions and horseshoe crabs was identified with the discovery of a 390-million-year-old fossil by...
Origin of claws seen in 390-million-year-old fossil
phys.org
· Credit: Elke Groening. Scientists have puzzled over the origins of the paired grasping appendages found on the heads of scorpions and ...
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