Carrie Arnold


Carrie Arnold is a Virginia-based freelance science journalist who covers many aspects of the living world. She’s a contributing editor at NOVA Next, and has also written for Mosaic, National Geographic, Aeon, Nautilus, Scientific American and Women’s Health. She is also the author of “Decoding Anorexia: How Breakthroughs in Science Offer Hope for Eating Disorders.”

From this contributor

Explore more from The Transmitter

Photo collage featuring a portrait of Tempest McDonald.

When autistic kids grow up, Chapter 4: How did things unfold?

Tempest McDonald sues Vanderbilt University Medical Center through the Equal Employment Opportunity Commission. Her published NIH paper finds allies.

By Brady Huggett
25 June 2026 | 27 min listen
Researchers looking at KEMRI biobank vials.

NeuroDev study maps previously unseen genetic variation in Africa

The project is helping to fill critical gaps in the genetic underpinnings of autism and other neurodevelopmental conditions.

By Brianna Abbott
25 June 2026 | 5 min read

Cooperating marmosets extend decision-making model of the brain

When a pair of marmosets works together to earn some marshmallow fluff, one of them decides to act only after its brain accumulates enough evidence about what the other is doing, new work shows.

By Calli McMurray
24 June 2026 | 1 min watch