The Mesozoic Era extinctions formed the world as we know it today. Read about what caused them and which animals survived.

The dire wolf, made famous in the hit HBO series "Game of Thrones," has been genetically-engineered by scientists in the U.S.

Colossal Biosciences revealed its small pack of genetically-modified dire wolves. The company's "de-extinction" plans include ...

In a stunning scientific development, the prehistoric canines made famous in the hit HBO show have been announced as the ...

Colossal Bioscience says it has “de-extincted” the dire wolf, but other scientists disagree and say more important ...

The near-extinction of India’s vultures due to diclofenac poisoning triggered an ecological and public health crisis. As ...

Violent supernovas may have caused two of Earth’s largest mass extinctions that have never been completely explained, according to a theory put forward in new research.During the final stages of ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Violent supernovas ...