The woolly mammoths have been extinct for several years now. Scientists are working on an experiment in getting back this species on the face of the Earth.
Researchers found that multiple copes of a tumor-suppressing gene TP53 accelerated the death of damaged cells to prevent a mutation from taking hold.
Ringling Brothers and Barnum & Bailey have brought an end to a tradition as old as the storied company itself by announcing they will stop using elephants in their shows.
