Study that impregnated male rats stirs controversy

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June 28, 2021

"Dragon Man" May Replace Neanderthal as Our Closest Relative

By Amanda Heidt

A massive, well-preserved skull discovered in China in the 1930s belongs to a new species called Homo longi, researchers report, but experts remain skeptical about the evidence.

Broken Heart Syndrome Linked to the Brain

By Amanda Heidt

A chronically stressed amygdala can prime the heart to overreact to acute stress events, a new study shows.

Study that Impregnated Male Rats Stirs Controversy

By Andy Tay

A combination of approaches, including uterus transplantation and the joining of two animals' circulatory systems, allowed males to bear pups, according to a preprint. But some experts say the experiments were not justified.

ICYMI: Many Bacteria and Archaea Promoters Work Forward and Backward

By Jack J. Lee

New analyses find that divergent transcription, in which one promoter directs the expression of two adjacent genes oriented in opposite directions, is conserved across all domains of life.


Infographic: How Fungi Squeeze Through Tight Spaces—or Don't

By Catherine Offord

A study finds that slower-growing species are better able to adjust their growth to fit their hyphae through narrow passages.

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A New Method for Characterizing Membrane Proteins

By The Scientist Creative Services Team


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