Brenda Grewe Leicht

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Chemists may be zeroing in on chemical reactions that sparked the first life

DNA is better known, but many researchers today believe that life on Earth got started with its cousin RNA, because that nucleic acid can act as both …

Biology

Picturing Inheritance, 1916

In 1910, Bridges began working in the famous Fly Room at Columbia University as a member of Thomas Hunt Morgan’s lab. Morgan’s group had already …

Genetics

Nettie Stevens, Discoverer Of Sex Chromosomes, Honored By Google

Happy 155th birthday to unsung female biologist<p>On her 155th birthday, Nettie Stevens is finally being honored with a Google Doodle, though it would have been nice for her to get a little more appreciation back in her time.<p>At a time when there really weren’t any spots open for women, Steven …

Biology

What Is Mitosis?

The primary mechanism by which organisms generate new cells is through cell division. During this process, a single “parent” cell will divide and …

Adding these simple ingredients to food could help stave off cancer

Garnishing dishes with parsley and dill could stave off cancer, say scientists.<p>The tasty garden herbs possess chemicals that prevent tumours from …

Watching a forest breathe

Using highly sensitive isotope analysis, a UA-led research team has obtained detailed measurements of carbon exchange in a temperate forest<p>For the …

Climate Change

Parkinson's connection to faulty mitochondria investigated

Researchers from the University of Pittsburgh School of Medicine have gleaned new insights into the cellular biochemistry that underpins Parkinson's …

Medical Research

Breast cancer cells use newfound pathway to survive low oxygen levels in tumors: Potential to render cancer cells less able to cope with hypoxia

Potential to render cancer cells less able to cope with hypoxia<p>Oxygen is important for the proper function of all human cells, but cancer cells …

Science News

A cosmic test fails to topple the strong equivalence principle.<p>Science Ticker<p>By Emily Conover<p><i>2 days</i> ago<p>Context<p>By Tom Siegfried<p><i>1 week</i> ago<p>Science & the …

Life on Mars? Scientists discover biggest clue yet that ALIENS once lived on Red Planet

GETTYScientists have found the biggest clue yet that Mars once hosted life<p>More evidence suggests that the Red Planet was once warmer and even had a …

Aliens

Earth - There are microbes that eat and poo nothing but electricity

Some microbes have developed the ultimate stripped-down diet. They do not bother with food or oxygen. All they need to survive is pure electrical energy.<p>They often live in muddy seabeds or along the banks of rivers. Finding them is easy: biologists can coax them out of hiding by sticking an …

Biology

Top 10 new species of 2016

From a giant tortoise to a tiny beetle and an early hominid, this year’s top 10 new species list contains some exciting finds.<p>Scientists think that …