genetic evolution

About 6,500 mammal species live on Earth today. Credit from left to right: John Moore/Getty Images; Yoshikazu Tsuno/AFP via Getty Images; Koichi Kamoshida/Getty Images; Paula Bronstein/Getty Images

Science

Welcome to the mammalverse: Scientists sequence DNA from 240 species around the world

4:43pm April 27, 2023

by Nell Greenfieldboyce

Researchers have examined the genomes of 240 mammal species. The project reveals when mammals evolved, how some developed the ability to hibernate, and clues that may help explain humans' brains.

One of the most famous African dog breeds, the basenji is closely related to street dogs found throughout West Africa.

World News
Health & Safety

Dogs And People Have More In Common Than You Might Think

5:46pm October 13, 2017

by Michaeleen Doucleff

It looks like dog DNA has evolved in lockstep with our DNA. A new study finds evidence in Nigeria's street dogs.

In 2003, Acanthamoeba polyphaga mimivirus, also known as mimivirus, was the first giant virus to be described. It's larger than many bacteria, and was found in a water sample from a hospital cooling tower in England.

National
Science
Health & Safety

In Giant Virus Genes, Hints About Their Mysterious Origin

7:07pm April 06, 2017

by Rae Ellen Bichell

They're the Godzillas of the virus world, pushing the limit of what is considered alive. Researchers are trying to figure out where they came from. (And no, they aren't known to make people sick.)

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