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 ...

In real life, snow leopards, which are also endangered, share some of the same habitats as the black and white bears and ... powerful jaws and teeth. Pandas can grow up to 1.5m long and weigh as much ...