Viviane Callier

Photo of a grasshopper poised to jump.
biophysics

Too Small for Big Muscles, Tiny Animals Use Springs

June 13, 2018

Elastic springs help tiny animals stay fast and strong. New work is finding what size critters must be to benefit from the springs.

Image for "Cells Talk and Help One Another via Tiny Tube Networks"
microbiology

Cells Talk and Help One Another via Tiny Tube Networks

April 23, 2018

Long-overlooked “tunneling nanotubes” and other bridges between cells act as conduits for sharing RNA, proteins or even whole organelles.

Elephant thumbnail
genomics

A Zombie Gene Protects Elephants From Cancer

November 7, 2017

Elephants did not evolve to become huge animals until after they turned a bit of genetic junk into a unique defense against inevitable tumors.

The delicate specialized structure of the water strider genus Rhagovelia looks like a Japanese fan.
evolution

Insects Conquered a Watery Realm With Just Two New Genes

October 19, 2017

Minor genetic changes can have big evolutionary consequences. When a gene duplication gave some water striders a novel leg part, it opened up a new world for them.