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Genetics

New evidence that environmental change can outpace genetic adaptation

DNA analyses of a now extinct population of butterflies shows they could not adapt fast enough to habitat loss during the 20th century.

Scientists find gene switch for “bad” fat

New study shows that targeting a certain gene can lower fat levels in the blood and reduce the risk of obesity, diabetes, and fatty liver disease.

When and where did wolves become dogs?

Did dogs become domesticated in Southeast Asia or Europe? New study challenges recent research.

Obesity can be passed on through the father’s sperm

Overweight men may pass obesity on to the children via their sperm, according to new research.

Crohn's, eczema, and psoriasis have the same genetic cause

Diseases like Crohn's, psoriasis, and eczema are all caused by defects in the same genes, reveals new study.

The Black Death has been hiding among us for thousands of years

Fossil DNA reveals that the plague is much older than previously suspected. The discovery could shed new light on the evolution of a deadly disease.

Genetics confirm: Migrants brought farming to the Mediterranean

Scientists have sequenced the genomes of early farmers from Spain, confirming that they descended from the same group of migrants who brought farming to Northern Europe.

Scientists discover gene to prevent blindness in diabetics

Diabetics who carry a specific genetic variant may be protected from a severe eye disease, which can lead to blindness if untreated.

Scientists solve the riddle of eel evolution

European and American eels emerged as separate species 3.5 million years ago -- yet they can still breed with each other. Scientists can now tell us how.

Mysterious link between people from South America and Australia

Two DNA studies show that South Americans have an unexpected link to indigenous people of Australia and Melanesia, but disagree on how and when the Americas were populated