The return of the long-extinct wooly mammoth or dodo bird may sound like a storyline straight out of science fiction. It’s not. Several de-extinction projects all share an ambitious aim to resurrect ...

In a giant feat of genetic engineering, scientists have created bacteria that make proteins in a radically different way than all natural species do. By Carl Zimmer At the heart of all life is a code.

Some conservation groups are calling for an effective ban on genetic modification, but others say these technologies are crucial for preserving biodiversity ...