AQUARTER of a century ago next April, the late Prof. E. D. Cope, struck by the remarkable fact that the molar teeth, both upper and lower, of all the mammals from the Puerco or lowest Eocene ...

but chisel and “molar-like” teeth. That’s according to a description from Rickard Toomey, a cave specialist for Mammoth Cave and one of the lead researchers involved in the scientific survey.