When human and chimp infants are dozing, they sometimes show facial movements that resemble smiles. These facial expressions—called spontaneous smiles—are considered the evolutionary origin of real smiles and laughter.
Evolution
Aug 4, 2016
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Every year, millions of birds make the journey from North America to Central and South America for the winter. But the evolutionary origins of this long-distance migration have remained opaque due to the complex geographic ...
Evolution
Aug 4, 2014
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Researchers at the University of California, San Diego School of Medicine have identified the evolutionary origins of human herpes simplex virus (HSV) -1 and -2, reporting that the former infected hominids before their evolutionary ...
Evolution
Jun 11, 2014
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Archaeologists at the University of York are challenging the traditional view that Neanderthal childhood was difficult, short and dangerous.
Archaeology
Apr 9, 2014
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Darwin referred to the origin of species as "that mystery of mysteries," and even today, more than 150 years later, evolutionary biologists cannot fully explain how new animals and plants arise.
Plants & Animals
Sep 2, 2013
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Charles Darwin famously included only one illustration in his book "On the Origin of Species" published in 1859. It was a diagram of how species originate through time in a manner that, on paper, resembles a family tree. ...
Evolution
Aug 29, 2013
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An analysis of enzymes that load amino acids onto transfer RNAs—an operation at the heart of protein translation—offers new insights into the evolutionary origins of the modern genetic code, researchers report. Their ...
Biotechnology
Aug 26, 2013
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Manipulation is often thought of as morally repugnant, but it might be responsible for the evolutionary origins of some helpful or altruistic behavior, according to a new study.
Plants & Animals
Aug 19, 2013
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Modern proteins exhibit an impressive degree of structural diversity, which has been well characterized, but very little is known about how and when over the course of evolution 3D protein structures arose. In a study published ...
Cell & Microbiology
Aug 8, 2013
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Researchers from the University of Alaska Fairbanks (Derek Sikes and Jill Stockbridge) discovered a strange new insect on Prince of Wales Island, Alaska. It belongs to an enigmatic group that might help scientists understand ...
Plants & Animals
Jul 11, 2013
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