Delighted to share our discoveries about one of the brain's neurotransmitter systems: www.biorxiv.org/content/10.6... Together with colleagues at the @alleninstitute.org, we have learned a lot about a tiny cluster of neurons in the brainstem locus coeruleus (LC) that releases norepinephrine (NE). 1

First off, these cells are gigantic. This one, for example, has >72 cm of axon! To our knowledge, it’s the longest neuron ever fully reconstructed. I leave it to the reader as an exercise to estimate the length of a human LC neuron. 5

Hemos atendido casi 6.000 consultas de mujeres embarazadas o en postparto con riesgo en #Gaza. Pese al horror, la vida se hace un hueco. https://f.mtr.cool/imcrwlfhwb

Bon dia! L'esfinx de la mort és una arna grossa amb la marca d'una calavera al tòrax. És una papallona migradora capaç de robar la mel dels ruscs imitant l’olor de les abelles. Les erugues també són voluminoses i vistoses. Sovint ha inspirat mites i curioses històries de la mort.

Erdogan dijo lo que todos pensamos de Israel: "El día del alto el fuego, Israel asesinó brutalmente a 254 libaneses. Son genocidas, cegados por la sangre y el odio, contra los valores humanos y todas las normas y principios. Continúa matando a niños, mujeres y civiles inocentes".

Contrary to public perception a huge % of pregnant teenagers in the 1990s were impregnated by adult men. The younger they were, the larger the average age gap between mother and father was. Fixing teen pregnancy was in part a clampdown on statutory rape. That's what conservatives want to reverse.

“The rich complex nature of human social ecologies creates new challenges, which select for cognitive capacities that support distinctive forms of communication & facilitate creation of linguistic conventions in turn.” @thomscottphillips.bsky.social & co in a valuable eLetter response to our paper.🧪

Glad we have a comprehensive article on the intra-community split in the Ngogo chimpanzees. It was shocking to see chimps that once had close, intimate friendships become violent, lethal enemies within just a couple of years! www.science.org/doi/10.1126/...

Dice Feijóo que bajando los impuestos habrá mejores servicios. ¿Este tío piensa que somos imbéciles o qué?

"Esta noche morirá toda una civilización, para no volver jamás." Palabras del genocida naranja. #Trump

El cerebro también huele.Y mucho.Estaré en CaixaForumZaragoza junto con Eduardo Weruaga en el diálogo “El cerebro que huele”,en el ciclo previo al @fens.orgForum2026, hablando de olfato, emoción y memoria. caixaforum.org/es/zaragoza/... @cncajal-csic.bsky.social @senc-neurociencia.bsky.social

Ahora que tengo un poco más de tiempo voy a intentar explicar los resultados del último artículo de nuestro grupo de investigación, en el que intentamos responder a la siguiente pregunta: ¿Cómo evitan nuestras células que su propio ARN active una alarma inmunológica? 🧬⚠️ (1/25)

The rabbit-duck illusion explained at last.

Some reports say over 500 schools, 55 libraries, & 25 universities hit. You can debate the numbers, but hitting Sharif University & Beheshti is like hitting MIT & Stanford. I keep wondering: How would the scientific community respond differently if it was those universities? What’s the difference?

These billionaires pay their workers so little that many of their workers need public assistance. Meanwhile, their companies just got another round of tax cuts from a bill that gutted the public assistance their workers have to rely on to get by. Trickle-down economics is a sham.

El perro de Kesslerloch, de 14.200 años, muestra que la diversidad genética canina empezó antes del Neolítico y que los perros mesolíticos europeos contribuyeron a los modernos más que los asiáticos. Genomic history of early dogs in Europe

How do #prenatal & #postnatal periods shape the developing human #cortex? This study uses #neonatal MRI to show that time in the womb drives widespread, uniform maturation, whereas time after birth produces more region- & depth-specific changes across the cortex @plosbiology.org 🧪 plos.io/47o6rpk

Heritability is a statistical description of sources of trait variation in a specific set of people under a specific set of environmental conditions. It doesn’t show how malleable the trait is, doesn't index an underlying feature of human biology, & can’t say anything about you as an individual.

So does the Olympic Committee plan to genetically test every single female athlete? Or will this just be a weapon individual people can wield by accusing their rivals of being "biologically male" and forcing them to undergo testing?

“11 sperm whales huddled together at the surface, strangely still and taking occasional shallow dives. After about an hour, the animals seemed to start thrashing, and a plume of blood reddened the water. The researchers feared trouble, maybe a shark attack. But it was something else.” WHALE DOULAS!

Becca Wood captures amazing video of Sharp-tail grouse (Tympanuchus phasianellus) males demonstrating their sexy dance, which involves moving legs up & down more than 20 times per second, inflating purple neck sacs, tails behind them like a flag. They're native to Canada & central plains of the US.

No one could have foreseen this. www.science.org/doi/10.1126/...

Buenos días. Sacad un rato para leer esta historia, creo que merece la pena. La vida dio un salto 'imposible': científicos españoles proponen que un cambio de “sistema operativo” sacudió la evolución www.eldiario.es/1_c7c17f?utm...

Todos tiramos al idealismo con este tipo de cosas, porque la verdad, los tiempos de ahora son la brea. Pero no nos olvidemos jamás que si el ser humano ha llegado tan lejos ha sido gracias a la creatividad y la empatía. A cuidarnos los unos a los otros. A encontrar formas de superar nuestros males.

El gen SRY, localizado en el cromosoma Y, es un factor de transcripción que dispara una cascada de acontecimientos que llevan a desarrollar los caracteres sexuales masculinos. Sin embargo, la propuesta de detectar su presencia mediante PCR no es suficiente. cadenaser.com/nacional/202...

When honeybees communicate to nestmates about the location of food resources through dance, the size and age of the audience matters: Bees dance precisely when many bees old enough to follow the dancer to food are present. In PNAS: https://ow.ly/wA4w50YySJr

New OA paper @royalsocietypublishing.org: What can we learn from bonobos and bottlenose dolphins about the evolution of between-group cooperation? royalsocietypublishing.org/rspb/article... Lovely collab with @lirsamuni.bsky.social Martin Surbeck and Richard Connor.

The last of the three pioneers of great ape studies has died. Galdikas, Fossey, and Goodall dedicated their lives to understanding the lives of these extraordinary creatures.

Israel cometió un genocidio en Gaza, inicio una guerra catastrófica en Irán, ahora dice que ocupará para siempre el sur del Líbano. La UE sigue tratándolo como un socio prioritario pero aplica todo tipo de sanciones a Rusia. El doble rasero que hunde la credibilidad de Occidente.

Evolution seems to have repeatedly converged on a similar architecture in the early olfactory system of many animals. We offer an efficient-coding framework to understand this. Out in @pnas.org now! Led by @jzv.bsky.social, driven by Juan Carlos, + help from Farhad. www.pnas.org/doi/10.1073/...

So sorry to hear of the death of Biruté Galdikas today at the age of 79. A visionary who brought the full extent of her observational genius to a species that had been largely ignored by other researchers, she will always be remembered. tinyurl.com/yc8hfhkc #WomenInSTEM #WHM #BioSky #HistSci 🦧

How Similar Are We To Extinct Human Species? | With Professor Chris Stringer youtu.be/mG4nxegSTCg?...

Mientras hablamos

Happy to announce that we received the HFSP to study the evolution of TRP channels! bit.ly/4uGmMQ3 This project is a collaboration between Luis Bezares from the @biodev-vlfr.bsky.social LBDV in Viellefranch and the University of Southampton. @unisouthampton.bsky.social

New work from Charlotte Grosse Wiesmann et al. on the foundations of verbal and non-verbal mindreading in the developing brain. www.jneurosci.org/content/earl...

Anyone have the full text of the original paper; can’t find it so don’t want to share wrong thoughts but it raises some thoughts 🧪

Insterested in #rhodopsins and #evolution? Looking for a #PhD? We're offering a PhD position combining both - and in deep-sea fish!:-) From protein to genes & evolution (and back). Deadline soon:-) Thanks for sharing! More info: www.fishevo.com/phd-position...

I’m advertising two position options (PhD/postdoc) within my lab - take a look below if you’re interested or send me a message ☺️ @uni-konstanz.de

I describe it as such as a historian of disability because I want to remind scientists and the world that the history of science IS the history of eugenics, scientific racism and medical racism, and more. I’m not comforting them with the idea that it was a ‘pseudoscience.’ This is your history.

An attack on power plants that serve civilians is an explicit war crime under the Geneva Convention Protocols.

Dogs aren't the only ones who evolved to eat your leftovers. House mice, rats & pigs have MANY extra copies of the amylase gene that helps digest starch. Big clue about who has been eating our table scraps for 1000s of years. doi.org/10.7554/eLif... bsky.app/profile/cega... #2026MMM

Help someone. Encourage someone. No matter what’s happening in the world, we can always choose to be a force for good and make a meaningful difference in someone’s life. Be the reason someone believes in the goodness in the world.

Most well known for hunting frogs, fringe-lipped bats have excellent hearing - they listen both for the sound of calling male frogs AND the echoes of the water ripples produced as the result of frogs inflating their vocal sacs (Halfwerk et al 2014). #2026MMM #2026mmm

La desesperación de un israelí decente👇🏼 www.haaretz.com/opinion/2026...

Belén Gopegui recuerda algo que a menudo se olvida: Cuba no es un país “fallido”, sino un país asediado. El bloqueo no es una metáfora económica, sino un ciclón deliberado de escasez. Antes de exigirle soluciones, habría que preguntarse quién sostiene el castigo

Early Neanderthals walked into this cave, went three football fields into the earth, created 15-foot-wide bubbles of rock, lit and tended small fires upon them. Then they left. This unique find has implications for how we underestimate many past peoples. www.johnhawks.net/p/a-look-at-...

La policía israelí mata con un tiro en la cabeza a un niño palestino ciego de 7 años, su hermano de 5 y sus padres, cuando volvían de hacer compras. www.theguardian.com/world/2026/m...

Nature published another pile of trash i am trying to catch up on some of my reading but this one is getting under my skin so here’s a thread highlighting why this piece is either ill-informed or intentionally ignorant of a wealth of knowledge from embodied cog sci and related fields 1/

The details here are horrific. They arrested her in Tennessee, jailed her for months, and eventually shipped her off to Fargo. She lost her home, her car and her dog. They eventually realized their mistake and put her out on the streets of Fargo on Christmas Eve. Could happen to any of us.