Not the K-T revisited

Was there an Ice-age Comet?

HERE is a review about speculation concerning the cause of the Younger Dryas - a cold period 1,500 years long, about 12,000 years ago. In this period many of the larger mammalian species died out. A cometary impact has been suggested - this article suggests not. Please note that there is a second page, click the link at the end of the first page. Or click HERE.

Preserved mammoth skin with spots of fur. Such well preserved fossils, recovered from the Russian Tundra, let some authors speculate about a sudden death of the animals.