10/11/2020

Flaws emerge in modeling human genetic diseases in animals

My lab, based at the University of Southern California Keck School of Medicine, uses zebrafish to model human birth defects affecting the face. When I tell people this, they are often skeptical that fish biology has any relevance ...

Chronic stress causes genetic changes in chickens

How can stress in animals be measured? Scientists from Uppsala University and elsewhere have now found that what are known as epigenetic biomarkers could be used to detect long-term exposure to stress in commercially raised ...

Fossil shark turns in to mystery pterosaur

Paleontologists have made a surprising discovery while searching through 100-year-old fossil collections from the UK—a new mystery species of pterosaur, unlike anything seen before.

Sticky electrons: When repulsion turns into attraction

Materials can assume completely different properties depending on temperature, pressure, electrical voltage or other physical quantities. In theoretical solid-state physics, state-of-the-art computer models are used to understand ...

Two genes regulate social dominance

Rank in social hierarchy is a condition not solely claimed by humans. In the animal kingdom, male peacocks exhibit brightly colored plumes to illustrate dominance, and underwater, male fish show pops of bright colors to do ...

Organoids produce embryonic heart

There was a time when the idea of growing organs in the lab was the stuff of science fiction. Today, stem cell biology and tissue engineering are turning fiction into reality with the advent of organoids: tiny lab-grown tissues ...

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