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The genomes of two species of water bears reveal clues about how they persist in extreme conditions, yet don’t resolve the animals’ debated evolutionary story.

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image: New Giant Virus Group Reported

New Giant Virus Group Reported

By Diana Kwon | April 6, 2017

A genomic analysis of “Klosneuviruses” suggests that they evolved from small viruses that accumulated genetic material over time, but not all virologists are convinced. 


image: Dinosaur Phylogenetic Tree Shake-Up

Dinosaur Phylogenetic Tree Shake-Up

By Jef Akst | March 24, 2017

An analysis of 74 dinosaur species leads a group of researchers to reorganize the extinct animals’ evolutionary history.


image: Ancient Origins of Retroviruses

Ancient Origins of Retroviruses

By Tracy Vence | January 12, 2017

Foamy-like endogenous retroviruses may have emerged more than 450 million years ago, according to an analysis.


image: The Pangenome: Are Single Reference Genomes Dead?

The Pangenome: Are Single Reference Genomes Dead?

By Catherine Offord | December 1, 2016

Researchers are abandoning the concept of a list of genes sequenced from a single individual, instead aiming for a way to describe all the genetic variation within a species.


image: Animal Microbiomes Are Unique and Beneficial to Their Hosts

Animal Microbiomes Are Unique and Beneficial to Their Hosts

By Ben Andrew Henry | November 29, 2016

Survey of 24 animal species suggests that each hosts a custom-tailored microbiome.


image: Repositioning Ctenophores

Repositioning Ctenophores

By Karen Zusi | December 1, 2015

A reanalysis of phylogenetic data places sponges, rather than comb jellies, back at the base of the animal tree.


image: Speaking of Science

Speaking of Science

By The Scientist Staff | November 1, 2015

November 2015's selection of notable quotes


image: Tree of Life v1.0

Tree of Life v1.0

By Jef Akst | September 22, 2015

Researchers map 2.3 million species in a single phylogeny. 


image: Ancient Beasts Classified by Collagen

Ancient Beasts Classified by Collagen

By Jef Akst | March 19, 2015

Protein extracted from ancient fossils identified by Darwin as some of the “strangest animals ever discovered” places the creatures amongst horses, tapirs, and rhinos on the tree of life.


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