Evolution

Recent articles

Photograph of a sea robin against a black background.

How ‘walking fish’ feel, taste hidden food with their legs

Fins-turned-legs in sea robins are innervated with touch-sensitive neurons and taste-receptor-rich cells that can detect prey buried in the sand, according to new research.

By Shaena Montanari
26 September 2024 | 5 min read
Research image of place cells plotted onto a reference zebrafish larva brain.

‘Place cells’ help guide freely swimming zebrafish larvae

The newly found cells function like those in mammals, revealing that spatial cognition evolved earlier than previously thought.

By Shaena Montanari
28 August 2024 | 5 min read
Illustration of a brain separated into four panes, each rendered in different colors and with different decorative elements.

How did consciousness evolve? An excerpt from ‘A History of Bodies, Brains, and Minds: The Evolution of Life and Consciousness’

In his new book, to be published in September, neuroscientist Francisco Aboitiz links consciousness back to the earliest days of biological life.

By Francisco Aboitiz
26 August 2024 | 12 min read
Photograph of neuroscientist Harvey Karten.

Remembering comparative neuroanatomy ‘great-grandfather’ Harvey Karten

The National Academy of Sciences member and pioneer in studying non-mammalian vertebrate brains died on 15 July at 89 years old.

By Sydney Wyatt
9 August 2024 | 9 min read
A marble bust of a face that is covered in real leaves.

Newly found circuit through visual cortex powers first look at faces

The superior colliculus, an evolutionarily ancient brain area responsible for eye movements, responds to faces before the canonical face areas do, a study of macaque monkeys suggests.

By Olivia Gieger
19 July 2024 | 5 min read
Research image of a lamprey.

New look at lampreys rewrites textbooks on origins of sympathetic nervous system

Sympathetic neurons pepper the embryos of the jawless fish—Earth’s first vertebrates—and overturn the idea that “fight or flight” was an innovation of jawed vertebrates.

By Shaena Montanari
17 April 2024 | 4 min listen
Illustrated portrait of Lauren O’Connell.

Setting up a frog colony and pair bonding with Lauren O’Connell

To become a scientist, O’Connell first needed to leave the family farm.

By Brady Huggett
1 March 2024 | 63 min listen
A photograph of a crow against a dark backdrop

Number-associated neurons help crows link values to symbols

Comparable neurons also exist in primates, which shared a common ancestor with crows more than 300 million years ago, suggesting that the ability to “count” evolved independently in the two lineages.

By Kenna Hughes-Castleberry
19 January 2024 | 4 min read
Illustration of two neurons with a shared origin point.

Cortical interneurons derive differently in human brains

Excitatory neurons and some inhibitory neurons in the adult human cortex share parents, challenging the longstanding idea that the two cell types have different origins.

By Elissa Welle
20 December 2023 | 6 min read
Photograph of a family of rhesus macaque monkeys.

Father’s genes may drive sociability in male monkeys

The findings in rhesus macaque monkeys may provide clues to sex differences in the heredity of social behavior in people.

By Charles Q. Choi
18 August 2023 | 3 min read

Explore more from The Transmitter

Human X and Y chromosomes.

Extra Y chromosomes are linked to autism

Data from people with more or fewer than two sex chromosomes could help answer questions around genetic protection and vulnerability.

By Grace Huckins
5 December 2024 | 5 min read
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Grace Hwang and Joe Monaco discuss the future of NeuroAI

Hwang and Monaco organized a recent workshop to hear from leaders in the field about how best to integrate NeuroAI research into the BRAIN Initiative.

By Paul Middlebrooks
4 December 2024 | 97 min listen
Illustration of an open journal featuring lines of text and small illustrations of eyes and mouths.

Anti-seizure medications in pregnancy; TBR1 gene; microglia

Here is a roundup of autism-related news and research spotted around the web for the week of 2 December.

By Jill Adams
3 December 2024 | 1 min read