Scientists have long believed they understood how life’s genetic code evolved, but new research upends that assumption. By ...

Students use both morphology and analysis of DNA sequences to identify relationships ... us understand how evolution has shaped life on Earth. Deep Tree: Students explore an interactive tree ...

It's an epic at the center of life itself ... the 3.5-billion-year history of life on Earth––can be summarized in an enormous family tree. To help you explore this tree and understand ...

Fragments of the asteroid Bennu, carefully collected and ferried to Earth by a robotic spacecraft, contain the building blocks for life ... nucleobases that form DNA and RNA on Earth and 14 ...

They’re the building rocks of life ... on Earth in 2023 for scientists to study. Researchers found that the fragments harbored all five nucleobases — the “letters” that comprise DNA ...

The findings, published in two papers in the journals Nature and Nature Astronomy on Wednesday, point to a missing link in the origins of life on Earth ... nucleobases for DNA and RNA.

Molecules that combine elements of RNA and DNA, so-called chimeric molecules, may have been an important step in the emergence of life on Earth from the primordial soup that existed billions of years ...

Besides well-known plant types found on Earth today they ... to this day. The "tree of life"—among the 9,500 species analyzed were 800 flowering plants alone whose DNA had so far not yet been ...