Viviane Callier

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

Cells Talk and Help One Another via Tiny Tube Networks

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

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

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.

About the author

Viviane Callier, a biologist by training, works as a science writer at the National Eye Institute and freelances for various science news publications.