Headshot of Emily Hayes.

Emily Hayes

Contributing writer

Emily Hayes is a freelance journalist based in the California Bay Area. She has more than 25 years of experience writing about medicine across therapeutic areas for health-care professionals and investors. Among other trade publications, she has written for the pharmaceutical news titles Pink Sheet and Scrip.

From this contributor

Explore more from The Transmitter

Ground squirrel.

How thirteen-lined ground squirrels illuminate retinal development

In most mammalian retinas, rods outnumber cones. But that ratio is flipped in ground squirrels, a quirk that helps Seth Blackshaw explore how retinal cells develop their identities.

By Sarah Thau
31 July 2026 | 5 min read
Research image of the association cortex.

Cortical territories compete in developmental space race

Sensory and association regions are established through a reciprocal process, according to a new model of cortical development.

By Holly Barker
30 July 2026 | 5 min read