It’s the dream of kids all around the world to see giant beasts walk the Earth again. Could -- and should -- that dream be realized? Hendrik Poinar talks about the next big thing: the quest to engineer a creature that looks very much...

It's amazing to think about the animals we've managed to save from the brink of extinction. Thanks to conservation efforts, species like the California condor, black-footed ferret, and the Arabian...

New advances in DNA technology might lead to the revival of long extinct species such as the passenger pigeon, the Southern gastric brooding frog and the woolly mammoth, scientists believe. Cloning once required intact DNA for successful...