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

Alison Barth discovers how different neuron types contribute to cortical function

Barth uses learning tasks in mice as a tool to drive synaptic plasticity in the sensory cortex, hoping to unlock more general principles of how the cortex works.

By Paul Middlebrooks
5 August 2026 | 1 min read
Mouse muscle cells.

Virus-like particles deliver gene-editing tools into Duchenne mouse model

The approach uses a protein found in fruit flies to ferry the gene editor Cas9 into muscle cells.

By Brianna Abbott
5 August 2026 | 5 min read

Textbook model of hippocampus’s role in memory may need updating

The CA3 region, long thought to have just one circuit, has two, sporting different wiring and functions, a new preprint suggests.

By Alissa de Chassey
4 August 2026 | 5 min read