Controversial study linking GM corn to tumors in rats retracted

Since its publication in September 2012, a study that showed rats fed Monsanto’s glyphosate-resistant NK603 maize developed more tumors than controls has been roundly criticized for its poor experimental design and dubious statistical methods. Yesterday, the study was retracted. » 11/29/13 8:00am 11/29/13 8:00am

New research suggests women can make sperm, and men can make eggs

What started as an investigation into developmental mouse biology has become a lot more than that. Biologist Katsuhiko Hayashi discovered a way to turn mouse skin cells into sperm and egg cells — and actually used these modified cells to create a living baby mouse. The question is, can it work in humans? » 8/21/13 4:26pm 8/21/13 4:26pm

Think your sex life is complicated? Imagine having 7 sexes.

No, this isn't something out of an Octavia Butler novel. It’s Tetrahymena thermophila — a single-celled organism that goes way beyond male and female. It has seven different sexes to choose from. Now a new study published in PLOS has finally made sense of its bizarrely complex and seemingly random sex life. » 3/27/13 2:30pm 3/27/13 2:30pm

Stunning molecular biology illustrations look like floral abstract art

Molecular biology professor and artist David Goodsell has no trouble finding art in the human body. His hand-drawn watercolor illustrations explode with color while offering his visual interpretation of bacteria, viruses, and human cells. » 7/29/12 2:00pm 7/29/12 2:00pm

Cytochrome C in Apoptosis Cytotoxic T Cell DNA Polymerase Hemostasis …

The Shark Immunity Factor that Could Save Your Life

Scientists have known for some time that dogfish sharks, like the one pictured up top, naturally produce a broad-spectrum antibiotic called squalamine in their livers. Now, new research into the cellular function of squalamine reveals how it also confers a broad-spectrum antiviral benefit for the shark — one we humans… » 9/20/11 12:58pm 9/20/11 12:58pm

What makes your cells self-destruct from too much fat and sugar?

One of the built-in defense mechanisms of our cells is that they self destruct when overloaded with fat and sugar. This helps kill off damaged cells, and prevents them from multiplying into cancers. While this ability is crucial for the body to maintain itself, up until now we've never known what causes this… » 7/08/11 5:51pm 7/08/11 5:51pm

One of the fathers of nuclear weapons wrote science fiction about…

Leo Szilárd was one of the first scientists to come up with the idea of a nuclear chain reaction, and he wrote the 1939 letter (signed by his friend Albert Einstein) that convinced President Roosevelt to launch the Manhattan Project. After the war, though, he turned his attention to molecular biology — and to spur… » 3/04/11 7:30am 3/04/11 7:30am