Thousands of years before we had the slightest idea of how genetics worked, humans were altering the genes of wolves and their dog descendants through breeding and domestication, ...

Ethicists and conservationists appear to be divided over what the purpose of bringing back extinct species should be – and whether it matters.

Colossal Biosciences has modified 20 genes from the gray wolf to create a canine that resembles a species that went extinct ...

On Monday, the “de-extinction” startup Colossal Biosciences announced its most ambitious results to date: the dire wolf.