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image: Evolution of the Penis

Evolution of the Penis

By | October 30, 2015

A phallus-less reptile goes through a developmental stage with external genitalia, suggesting a common origin for the organ among amniotes.


image: Ancient DNA Sheds Light on Peopling of Americas

Ancient DNA Sheds Light on Peopling of Americas

By | October 28, 2015

An analysis of centuries-old genetic material from two infants who lived near the Bering Strait suggests that people came to North America in a single wave from Asia about 25,000 years ago.


image: Bronze Age Plague Sequenced

Bronze Age Plague Sequenced

By | October 26, 2015

Plague-causing bacteria may have been around as early as 5,000 years ago, though a genomic analysis suggests that ancient strains were less contagious.


image: Dogs Originated in Central Asia

Dogs Originated in Central Asia

By | October 21, 2015

Man’s best friend was domesticated near Nepal and Mongolia at least 15,000 years ago, according to a genetic analysis.

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image: Life Before 4 Billion Years Ago?

Life Before 4 Billion Years Ago?

By | October 20, 2015

A new estimate of the origin of life on Earth pushes back the date by 300 million years.

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image: Buzzed Honeybees

Buzzed Honeybees

By | October 20, 2015

Caffeinated nectar makes bees more loyal to a food source, even when foraging there is suboptimal.


image: One-Third of Cactus Species Threatened

One-Third of Cactus Species Threatened

By | October 6, 2015

A global assessment of declining cacti populations places responsibility on increasing human activities.


image: Polar Dino Discovered

Polar Dino Discovered

By | September 28, 2015

Researchers working in Alaska, above the Arctic Circle, have unearthed the northernmost species of dinosaur ever found.


image: Tree of Life v1.0

Tree of Life v1.0

By | September 22, 2015

Researchers map 2.3 million species in a single phylogeny. 


image: Behind the <em>H. naledi</em> Find

Behind the H. naledi Find

By | September 10, 2015

See scientists at work near the site where a new Homo species was recently found.


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