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      Life on Earth evolved from a universal common ancestor approximately 3.8 billion years ago...

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Could a newly discovered viral genome change what we thought we knew about virus evolution?

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1000pa (Apr. 18, 2012) — A study published in BioMed Central's Biology Direct journal reports the existence of a previously undetected group of viruses and, more importantly, a new type of viral genome that could have huge implications for theories of viral emergence and evolution.

Viruses are the most abundant organisms on earth, yet little is known about their evolutionary history since they have exceptionally high rates of genetic mutation which are difficult to track. Viral metagenomics, however, is becoming an increasingly useful tool with which to glimpse virus evolution, as it makes available vast amounts of new sequence data for analysis.

Kenneth M Stedman's team from Portland State University in Oregon, USA...

Chimp 'X factor': Extensive adaptive evolution specifically targeting the X chromosome of chimpanzees

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1000pa (Jan. 30, 2012) — Genetic mutations that boost an individual's adaptability have greater chances of getting through to X chromosomes -- at least in chimpanzees, according to new Danish research.

One of the most important questions for evolution researchers is how a species develops and adapts during the course of time. An analysis of the genes of 12 chimpanzees has now demonstrated that the chimpanzee X chromosome plays a very special role in the animal's evolutionary...

No need to shrink guts to have a larger brain

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1000pa (Nov. 9, 2011) — The so-called expensive-tissue hypothesis, which suggests a trade-off between the size of the brain and the size of the digestive tract, has been challenged by researchers at the University of Zurich. They have shown that brains in mammals have grown over the course of evolution without the digestive organs having to become smaller. The researchers have further demonstrated that the potential to store fat often goes...

1000pa (Nov. 9, 2011) — The so-called...

Invasion of genomic parasites triggered modern mammalian pregnancy

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1000pa (Sep. 25, 2011) — Genetic parasites invaded the mammalian genome more than 100 million years ago and dramatically changed the way mammals reproduce -- transforming the uterus in the ancestors of humans and other mammals from the production of eggs to a nurturing home for developing young, a new Yale University study has found.

The findings published online Sept. 25 in the journal Nature Genetics describe in unprecedented detail the...

1000pa (Sep. 25, 2011) — Genetic parasites...

Invasion of genomic parasites triggered modern mammalian pregnancy, study finds

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1000pa (Sep. 26, 2011) — Genetic parasites invaded the mammalian genome more than 100 million years ago and dramatically changed the way mammals reproduce -- transforming the uterus in the ancestors of humans and other mammals from the production of eggs to a nurturing home for developing young, a new Yale University study has found.

The findings published online Sept. 25 in the journal Nature Genetics describe in unprecedented detail the...

1000pa (Sep. 26, 2011) — Genetic parasites...

First Bird

First Bird
What was the earliest known bird?

Unexplained artifacts

unexplained artifacts
The 10 most amazing unexplained artifacts

Evolution

Timeline: Human Evolution

Biggest Dinosaurs

The 10 Biggest Dinosaurs

Fossils 

Fossil Formation: How Do Fossils Form?
 

Book review

Dinosaurs Encyclopedia

Book Review

Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages ... WRITTEN BY A PROFESSIONAL paleontologist specifically for young readers, this guide to the Dinosauria is packed...