Evolution

Recent articles

Illustration of worm on top of a purple rock with neurons in the background.

The three-banded panther worm is rewriting the story of brain evolution

The animal has a brain structure all its own, according to a 2026 preprint. The finding hints that brains could have evolved centralization before regionalization.

By Sarah DeWeerdt
4 November 2026 | 7 min read
Barbara Finlay looking at a glass jar with a brain.

Remembering Barbara Finlay, ‘maverick’ of evolutionary neuroscience

Finlay, who died on 12 September, championed the idea that developmental constraints dictate how evolution sculpts brains, a concept she used to model the timing of hundreds of events and align them across mammalian species.

By Calli McMurray
23 October 2026 | 8 min read
A crow looking at a screen showing a circle of white dots on a black background.

Crows have brains ‘in the fast lane’

The birds accurately complete decision-making tasks twice as fast as primates, although their endbrains look considerably different.

By Sarah Thau
22 October 2026 | 4 min read
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Response to ‘Finally, a new route for the magnetic-sense field’

Magnetoreception in Drosophila has much to offer those with an interest in neuroscience.

By Denis Henshaw
30 September 2026 | 3 min read
Researcher examining butterfly in lab.

Finally, a new route for the magnetic-sense field

Researchers have dueled for years over how the magnetic sense works. New data from monarch butterflies could finally help settle the debate.

By Calli McMurray
11 September 2026 | 16 min read
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 mouse and human Purkinje cells.

Purkinje cells evolved to have increasingly complex architecture

An increasing proportion of the cerebellar neurons acquired multiple primary dendrites in humans and other apes, according to a comparison of 11 primate species.

By Siddhant Pusdekar
16 July 2026 | 5 min read

Arboreal deer mice reveal neural roots of dexterity

The rodents offered researchers an opportunity to link genetically driven changes in corticospinal abundance and morphology to climbing cachet.

By Siddhant Pusdekar
8 April 2026 | 0 min watch
Book cover of The Brain, In Theory by Romain Brette.

‘The Brain, In Theory,’ an excerpt

In his new book, Brette pushes back against theories that describe the brain as a “biological computer.” In this excerpt from Chapter 4, he challenges equating brain evolution with programming, and the universality of neural network models.

By Romain Brette
7 April 2026 | 5 min read

Explore more from The Transmitter

New phase of BRAIN Initiative spawns basal ganglia ‘parts list’

With a standardized cell naming system and infrastructure for data collection and analysis, the basal ganglia project sets the stage for a whole-brain primate atlas.

By Claudia López Lloreda
12 November 2026 | 1 min watch
Research image showing genes containing microexons in mice.

Machine-learning model spots autism-linked variants that scramble splicing

The model provides a way to investigate genetic variation in regions of the genome whose functions have been difficult to interpret.

By Giorgia Guglielmi
12 November 2026 | 4 min read
Illustration of two overlapping speech bubbles patterned with blue and pink horizontal lines on a background of pink and brown horizontal lines.

Future of AI brain models sparks debate

Neuroscientists are divided about whether foundation models that predict brain responses will help the field understand how brains work.

By Natalia Mesa
11 November 2026 | 10 min read