Researchers at Stockholm University carefully ground up bits of muscle and other tissue from Yuka and nine other woolly ...

RNA plays a vital role in how our genes are expressed and how diseases develop. Yet, because RNA molecules constantly change ...

New research shows RNA is preserved for longer than scientists had realized. This is the oldest RNA ever profiled.

Chemical structure of guanine, showing its double-ring purine structure and the functional groups involved in hydrogen bonding with cytosine. (Image: Public Domain) Guanine has the chemical formula ...

This image depicts the chemical structure of cytosine. It shows a hexagonal ring with nitrogen atoms at positions 1 and 3, and a primary amine group attached to carbon 4. The two remaining positions ...

Scientists have extracted the oldest RNA molecules out of a woolly mammoth, gaining a snapshot into the processes at work in the extinct mammal's body just before it died.

Scientists have recovered RNA from a mammoth carcass preserved in permafrost for 40,000 years. The ancient molecules reveal details about the creature’s last moments.

Inside every cell, a finely tuned metabolic network determines when to build, recycle, or stop producing essential molecules.