Sex chromosomes

Recent articles

Photograph of a cardinal with male-typical red feathers on one side and more drab, female-typical feathers on the other.

What birds can teach us about the ‘biological truth’ of sex

Part of our job as educators is to give students a deeper understanding of the true diversity of sex and gender in the natural world.

By Nicole M. Baran
22 April 2025 | 7 min read

Explore more from The Transmitter

Michael Shadlen explains how theory of mind ushers nonconscious thoughts into consciousness

All of our thoughts, mostly nonconscious, are interrogations of the world, Shadlen says. The opportunity to report our answers to ourselves or others brings a thought into conscious awareness.

By Paul Middlebrooks
28 January 2026 | 1 min read
Walter Koroshetz.

‘Peer review is our strength’: Q&A with Walter Koroshetz, former NINDS director

In his first week off the job, the former National Institute of Neurological Disorders and Stroke director urges U.S. scientists to remain optimistic about the future of neuroscience research, even if the executive branch “may not value what we do.”

By Angie Voyles Askham
27 January 2026 | 7 min read
Chimpanzee neural organoid.

Viral remnant in chimpanzees silences brain gene humans still use

The retroviral insert appears to inadvertently switch off a gene involved in brain development.

By Siddhant Pusdekar
27 January 2026 | 5 min read

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