ScienceDaily: Top Science News

New discovery shows human cells can write RNA sequences into DNA

Posted: 11 Jun 2021 02:40 PM PDT

In a discovery that challenges long-held dogma in biology, researchers show that mammalian cells can convert RNA sequences back into DNA, a feat more common in viruses than eukaryotic cells.

Study finds brain areas involved in seeking information about bad possibilities

Posted: 11 Jun 2021 08:08 AM PDT

Researchers have identified the brain regions involved in choosing whether to find out if a bad event is about to happen.

African great apes to suffer massive range loss in next 30 years

Posted: 07 Jun 2021 01:10 PM PDT

A new study predicts massive range declines of Africa's great apes -- gorillas, chimpanzees and bonobos -- due to the impacts of climate change, land-use changes and human population growth.

Bacteria are connected to how babies experience fear

Posted: 04 Jun 2021 10:54 AM PDT

Why do some babies react to perceived danger more than others? According to new research, part of the answer may be found in a surprising place: an infant's digestive system.

A shark mystery millions of years in the making

Posted: 03 Jun 2021 02:11 PM PDT

The biggest shark attack in history did not involve humans. A new study by earth scientists has turned up a massive die-off of sharks roughly 19 million years ago. It came at a period in history when there were more than 10 times more sharks patrolling the world's oceans than there are today.