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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.

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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: Repainting Ancient Birds

Repainting Ancient Birds

By Megan Scudellari | July 1, 2011

Using synchrotron rapid scanning X-ray fluorescence to map the distribution of trace metals in avian fossils over 120 million-year-old, researchers reconstruct the pigment patterns of their feathers—revealing some of the extinct birds' long-lost colors.

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image: Thymus Finder

Thymus Finder

By Richard P. Grant | July 1, 2011

Editor’s Choice in Immunology

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image: Foresight

Foresight

By Karen Hopkin | July 1, 2011

Studying the earliest events in visual development, Carla Shatz has learned the importance of looking at one’s data with open eyes—and an open mind.

12 Comments

image: Harmit Malik: Viral Historian

Harmit Malik: Viral Historian

By Megan Scudellari | July 1, 2011

Member, Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington. Age: 38

3 Comments

image: Color by Number Fossils

Color by Number Fossils

By Megan Scudellari | June 30, 2011

Researchers map pigments in early bird fossils using preserved metallic residues.

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image: Warm-Blooded Dinos?

Warm-Blooded Dinos?

By Jef Akst | June 24, 2011

Evidence that large dinosaurs had body temperatures similar to modern-day mammals suggests they were either endothermic or extremely good at conserving body heat.

3 Comments

image: Escape Predators, Get Parasites

Escape Predators, Get Parasites

By Jef Akst | June 24, 2011

A particular predator defense used by water fleas makes them more susceptible to parasite infections, new research shows.

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