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evolution

Art for "Rapid Oxygen Changes Fueled an Explosion in Ancient Animal Diversity"
Abstractions blog

Rapid Oxygen Changes Fueled an Explosion in Ancient Animal Diversity

May 9, 2019

Skyrocketing animal diversity a half-billion years ago was linked to spikes and dips in marine oxygen levels, according to a detailed geological study.

Art for "Icefish Study Adds Another Color to the Story of Blood"
evolution

Icefish Study Adds Another Color to the Story of Blood

April 22, 2019

The rainbow of pigments that animals use for blood illustrates a central truth of evolution.

Abstractions blog

Viruses Have a Secret, Altruistic Social Life

April 15, 2019

Researchers are beginning to understand the ways in which viruses strategically manipulate and cooperate with one another.

Art for "Researchers Rethink Ancestry of Complex Cells"
evolution

Researchers Rethink the Ancestry of Complex Cells

April 9, 2019

New studies revise ideas about the symbiosis that gave mitochondria to cells and about whether the last common ancestor of all eukaryotes was one cell or many.

Art for "New Squid Genome Shines Light on Symbiotic Evolution"
evolution

New Squid Genome Shines Light on Symbiotic Evolution

February 19, 2019

Researchers hope that the genes of a glowing squid can illuminate how animals evolved organs for beneficial bacteria.

A row of skulls ending with homo sapiens, foreground, found at The Smithsonian Museum of Natural History’s Hall of Human Origins.
Abstractions blog

Artificial Intelligence Finds Ancient ‘Ghosts’ in Modern DNA

February 7, 2019

With the help of deep learning techniques, paleoanthropologists find evidence of long-lost branches on the human family tree.

Art for "Fragile DNA Enables New Adaptations to Evolve Quickly"
evolution

Fragile DNA Enables New Adaptations to Evolve Quickly

February 5, 2019

If highly repetitive gene-regulating sequences in DNA are easily lost, that may explain why some adaptations evolve quickly and repeatedly.

Abstractions blog

Gene Drives Work in Mice (if They’re Female)

January 23, 2019

Biologists have demonstrated for the first time that a controversial genetic engineering technology works, with caveats, in mammals.

Abstractions blog

Jellyfish Genome Hints That Complexity Isn’t Genetically Complex

January 8, 2019

Jellyfish didn’t need novel genes to take an evolutionary leap in complexity.