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image: On the Origin of Birds

On the Origin of Birds

By Cristina Luiggi | July 27, 2011

The discovery of a new bird-like fossil challenges longstanding theories about which species of dinosaur gave rise to the avian lineage.

24 Comments

image: Electric Dolphins?

Electric Dolphins?

By Jef Akst | July 27, 2011

Like many fish and amphibians, the Guiana dolphin can sense low levels of electrical activity in the water—an ability not previously reported in true mammals.

0 Comments

image: Latitude Affects Human Eye Size

Latitude Affects Human Eye Size

By Jef Akst | July 27, 2011

People living near the Earth’s poles, where days are often short and light often low, have larger eyes and visual cortices than those closer to the equator.

0 Comments

image: Top 7 in Microbiology

Top 7 in Microbiology

By Megan Scudellari | July 26, 2011

A snapshot of the most highly ranked articles in microbiology and related areas, from Faculty of 1000.

0 Comments

image: Chimp Brains Don’t Shrink with Age

Chimp Brains Don’t Shrink with Age

By Tia Ghose | July 25, 2011

Unlike human brains, chimpanzee brains don’t get smaller as they age, suggesting that pronounced neurological decline is a uniquely human byproduct of our oversized brains and extreme longevity.

33 Comments

image: Neanderthal DNA in Modern Humans

Neanderthal DNA in Modern Humans

By Jef Akst | July 19, 2011

Non-African people carry remnants of the Neanderthal X chromosome, suggesting interbreeding with early human ancestors.

51 Comments

image: WHO Says No to TB Blood Tests

WHO Says No to TB Blood Tests

By Cristina Luiggi | July 19, 2011

For the first time, WHO warns against the use of a diagnostic method.

3 Comments

image: Learning Addiction

Learning Addiction

By Cristina Luiggi | July 13, 2011

Eleanor Simpson, a neuroscientist at Columbia University Medical Center, discusses a recent Nature paper that probes dopamine's role in helping animals make positive associations to stimuli that herald pleasurable outcomes (such as the handing out of food).

9 Comments

image: Circadian Signs of Aging

Circadian Signs of Aging

By Kerry Grens | July 13, 2011

The neural nexus of the circadian clock shows signs of functional decline as mice age, providing clues as to why sleep patterns tend to change as people grow older.

27 Comments

image: Contact Allergies May Help Stymie Cancer

Contact Allergies May Help Stymie Cancer

By Edyta Zielinska | July 12, 2011

New data suggests that skin rashes are associated with lower risk of developing certain cancers.

3 Comments

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