Earth looked much different not just millions, but even decades and centuries ago. Many animal species that once existed are nowhere to be found. From human activity to climate change, new animals ...

Just because a species is presumed extinct doesn’t mean it’s gone forever. Here are four glowing examples of this unique, and felicitous, phenomenon. Not all species that have been classified as ...

Colossal Biosciences made a record-breaking 20 edits across 14 genes in gray wolf cells by adding extinct dire wolf DNA. This was the first time ancient DNA has been used to bioengineer an extinct ...

A version of the dodo bird (Raphus cucullatus) could make a return someday soon. Colossal Biosciences announced this week several milestones in its quest to bring the extinct species back to life. On ...

Researchers at Linköping University, Sweden, are mapping the genetic differences between the domestic chicken and its wild relative the junglefowl. They will now try to find out whether it is possible ...

EDITOR’S NOTE: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

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 ...