Category Archives: Latest on Evolution

All 2.3 Million Species Are Mapped into a Single Circle of Life

Since Charles Darwin's day, biologists have depicted how new organisms evolve from old ones by adding branches to numerous trees that represent portions of the animal, plant and microbial kingdoms. Researchers from a dozen institutions recently completed a three-year effort to combine tens of thousands of trees into one diagram, most readable as a circle…
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Biologists watch speciation in a laboratory flask

Biologists have discovered that the evolution of a new species can occur rapidly enough for them to observe the process in a simple laboratory flask. In a month-long experiment using a virus harmless to humans, biologists working at the University of California San Diego and at Michigan State University documented the evolution of a virus…
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A newly made RNA strand bolsters ideas about how life on Earth began

A fundamental property of life is the ability to replicate itself. Researchers have now created the first molecules of RNA, DNA’s singled-stranded relative, that are capable of copying almost any other RNAs. The discovery bolsters the widely held view among researchers who study the origin of life that RNA likely preceded DNA as the central…
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Our last common ancestor inhaled hydrogen from underwater volcanoes

The chemical chain of events that led to the origin of life on Earth is likely forever lost to the mists of time. But some of our earliest ancestors—including the microbial Eve from which all modern cells descended—left behind traces in the genes they passed to their descendants. To track these shared genes, geneticists have…
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Fish may have evolved to live on land more than 30 times

The first fish that stepped onto land more than 350 million years ago wasn’t a fluke. Our ocean friends may have evolved the ability to come out of the water at least 30 times over the ages, according to a new study of the diversity of amphibious fish alive today. The work highlights the factors…
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How the introduction of farming changed the human genome

The introduction of agriculture into Europe about 8,500 years ago changed the way people lived right down to their DNA. Until recently, scientists could try to understand the way humans adapted genetically to changes that occurred thousands of years ago only by looking at DNA variation in today's populations. But our modern genomes contain mere…
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10,000-year-old lion cubs found in cave

In remote and icy Siberia, bodies of long extinct ancient animals are often found preserved within the thick permafrost, from woolly mammoths to ancient horses. These carcasses have been so well preserved, that some reports suggest that the meat is often fresh enough to eat, and can even contain liquid blood. In another stunning find, The…
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Greater than the sum of its parts

It is rare for a new animal species to emerge in front of scientists’ eyes. But this seems to be happening in eastern North America LIKE some people who might rather not admit it, wolves faced with a scarcity of potential sexual partners are not beneath lowering their standards. It was desperation of this sort,…
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New primate species at root of tree of extant hominoids

Living hominoids are a group of primates that includes the small-bodied apes (the lesser apes, or gibbons and siamangs, which constitute the family Hylobatidae) and the larger-bodied great apes (orangutans, gorillas and chimpanzees), which, along with humans, belong to the family Hominidae. All extant hominoids share several features, such as the lack of external tail,…
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