Scientists shed some light on biological "dark matter"

Biologists have studied the functionality of a poorly understood category of genes, which produce long non-coding RNA molecules rather than proteins. Some of these genes have been conserved throughout evolution, and are present ...

Clues from a Somalian cavefish about modern mammals' dark past

After millions of years living in constant darkness, a species of blind cavefish found only in Somalia has lost an ancient system of DNA repair. That DNA repair system, found in organisms including bacteria, fungi, plants, ...

Mammal diversity exploded immediately after dinosaur extinction

The diversity of mammals on Earth exploded straight after the dinosaur extinction event, according to UCL researchers. New analysis of the fossil record shows that placental mammals, the group that today includes nearly 5000 ...

Rooting the family tree of placental mammals

Placental mammals consist of three main groups that diverged rapidly, evolving in wildly different directions: Afrotheria (for example, elephants and tenrecs), Xenarthra (such as armadillos and sloths) and Boreoeutheria (all ...

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