This species is the first and only one to have gone extinct twice, highlighting that de-extinction isn't so simple.

"For many years, the scientific community considered it an extinct species in Mexico." Scientists make unexpected discovery ...

The creation of three "dire wolf" pups has raised hopes that it may be possible to resurrect extinct animals. But some ...

Scientists say the Trump administration’s embrace of de-extinction won’t help endangered species like the Great Lakes gray ...

Wolf conservationists say the truly dire matter is protecting America’s wild gray wolves — but that’s not as cute and cuddly ...

Others, for whatever reason, died and became extinct. But now humans are involved in every aspect of the life cycle of every species. For example this month, American scientists reported bringing ...

The accused, a middle-aged Chinese man dressed in a pale blue shirt and jeans, sat quietly on the bench in the defendant’s ...