Colossal Laboratories & Biosciences, which has produced a trio of modern-day dire wolves and the woolly mouse, seeks to bring back extinct species.

The creation of a woolly-mouse embryo marks a significant leap in the field of de-extinction, bringing us one step closer to reviving the iconic woolly mammoth. By combining advanced gene-editing ...

In 2010, tusk hunters scouring a riverbank near Siberia’s Arctic coast discovered the mummy of a juvenile mammoth. The animal, nicknamed “Yuka” after the nearby village of Yukagir, had been frozen for ...

A woolly mammoth that lived and died nearly 40,000 years ago has given us a spectacular scientific first, millennia later. From the skin and muscle of a mammoth (Mammuthus primigenius) named Yuka, ...

Long before modern humans built cities or carved out farms, woolly mammoths wandered across frozen plains with thick coats and steady steps. Their bones, tusks, and frozen bodies have offered clues to ...

40,000-year-old RNA from permafrost-preserved tissue was recovered from a mammoth specimen known as Yuka. Molecular evidence from Yuka revealed a correction to the original assumption about Yuka’s sex ...

Almost 40,000 years ago, a juvenile woolly mammoth died in modern-day Siberia. Today, its long-frozen remains have yielded the oldest sequences of RNA—messenger molecules that carry out genetic ...

One of Yuka’s legs, illustrating the exceptional preservation of the lower part of the leg after the skin had been removed, which enabled recovery of ancient RNA molecules. Photo credit: Valeri ...