Cloning long-extinct or even currently endangered species has caveats and is not a straightforward or simple process. There is a high rate of fetal loss, as well as mortality soon after birth.

An update to the International Union for Conservation of Nature's Red List of Threatened Species has declared 31 animal and plant species extinct. That total includes the lost shark, listed as ...

From dire wolves to woolly mammoths, the idea of resurrecting extinct species has captured the public imagination. Colossal Biosciences, the Dallas-based biotech company leading the charge, has ...

De-extinction refers to the resurrection of extinct species through genetic techniques. Unlike traditional cloning, it often relies on hybridization of ancient and modern DNA.

According to the United States Environmental Protection Agency, there are over 1,300 species listed as endangered or threatened to become extinct in the U.S. under the Endangered Species Act of 1973.

To date, there has only been one successful attempt to bring a species back from extinction, and it was a short-lived success. Celia, the last living Pyrenean Ibex, a subspecies of wild mountain ...

The dire wolf is a canine species that has been extinct for around 10,000 years, having lived up to 250,000 years ago. Living in the Americas, they are thought to have "died out as their prey did ...

Most of these extinct sloths also didn't live in trees, because they were too big. The largest sloths, in the genus Megatherium, were about the size of Asian bull elephants and weighed roughly ...

Animals that birth de-extinct species could experience miscarriage, stillbirth, early death and possible pain, suggested Jay Odenbaugh, a professor of philosophy at Lewis & Clark College in ...

Najin and Fatu, the two remaining northern white rhinos, on March 20, 2018 at the ol-Pejeta conservancy in Nanyuki, Kenya. News of the recovery of an extinct species in the form of howling, ivory ...

The species last roamed the Earth 10,000 years ago. Biologists have confirmed the existence of a 200-million-year-old species of egg-laying mammal that has been assumed to be extinct.

According to the United States Environmental Protection Agency, there are over 1,300 species listed as endangered or threatened to become extinct in the U.S. under the Endangered Species Act of 1973.