5 Animals That Were Declared Extinct In The Year 2021 Posted: 12 August 2025 | Last updated: 12 August 2025 Most of us are aware that the changes we make to this planet negatively affect the animals ...

In Sept. 2021, the U.S. Fish and Wildlife Services released a report declaring 23 animal species as extinct, meaning they haven’t been sighted in decades. Climate change and other anthropogenic causes ...

In April of 2025, headlines across the world announced that the dire wolf had been brought back from extinction. This 130-150 lbs wolf species, about 25% heavier than modern-day gray wolves, had not ...

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 made ...

Dire wolves were massive and highly intelligent animals nearly the size of a small horse, capable of ripping a man’s arm off as easily as a dog kills a rat. They lived in cold regions in a place ...

The idea of resurrecting extinct organisms is alluring; I would love to see one of the strange Cambrian animals like Hallucigenia and Opabinia, feathered dinosaurs, the giant hornless rhino "Walter" ...