Richard Merrill

Very happy to see our opinion article out in @cp-trendsecolevo.bsky.social today. 🥳 We ask whether sexual signals can influence the evolutionary trajectory of naturally selected adaptations, such as protective colouration, for better or for worse 🧐 1/n
doi.org/10.1016/j.tr...

Insertion of an invading retrovirus regulates a novel color trait in swordtail fish For over a century, evolutionary biologists have been motivated to understand the mechanisms through which organisms adapt to their environments. Coloration and pigmentation are remarkably variable wi...

I am so excited to share new work on a TE insertion that regulates iridescence in swordtails, led by fantastic grad student @nadiahaghani.bsky.social and with help from many coauthors! In a time that has been so difficult to navigate, this & other projects have kept my spirits up: shorturl.at/NE65A

Join us! 🧬🪰🎉🔬

We are currently advertising two #PhD projects to study the #evolution, #development and #genomics of sexual traits in stalk-eyed flies.

Deadline for applying is Wednesday, January 7, 2026. Get in touch for more info!

Two rainforest butterflies have evolved to look more alike, likely to confuse shared predators. But why don’t they get confused themselves?

To avoid mating with the wrong species, they’ve cleverly evolved distinct scents.
buff.ly/fxVrlCI

The diversity of lepidopteran spatial orientation strategies – neuronal mechanisms and emerging challenges in a changing world - Journal of Comparative Physiology A The Lepidoptera, butterflies and moths, display an astonishing diversity of spatial orientation strategies essential for survival, reproduction, and ecological success. These spatial orientation strat...

link.springer.com/article/10.1...

@ebablab.bsky.social and I helped a bit in this really informative article by Robin Grob in the el Jundi lab on spatial orientation strategies in Lepidoptera. Have a read :-)

Genomic architecture of egg mimicry and its consequences for speciation in parasitic cuckoos Host-parasite arms races facilitate rapid evolution and can fuel speciation. Cuculus cuckoos are deceptive egg mimics that exhibit a broad diversity of counterfeit egg phenotypes, representing host-ad...

Our new @science.org paper is out! Cuckoos and hosts are locked in a coevolutionary arms race over egg mimicry.

But how are these egg types inherited, and could this drive speciation? We sequenced hundreds of genomes to find out!

doi.org/10.1126/scie...

🧵1/6

Minority representation on TV causes outrage There has been widespread support for prominent Reform MP Sarah Pochin after she complained about the over-representation of minorities on television. Said one angry viewer, "She's right. Every time you turn on the telly there's another Reform MP being interviewed by Laura Kuenssberg." She added, "I respect their way of life and their strange customs, but Reform MPs comprise only 0.7 percent of the House of Commons. Yet Nigel Farage is on Question Time more than Fiona Bruce." "I'm not prejudiced. Some of my best friends are swivel-eyed loons, but enough is enough. There are too many people with angry red faces on television.”

Gotta love Private Eye.
Always cuts through the crap.

Just saw this. Give me a day or two!

Really like this paper, led by @ficusorganensis.bsky.social, the supplementary videos aren’t up yet but will post them when I’m back in the office!

Nice paper showing a major effect of wing morphology on diptera flight by Camille Le Roy, Florian Muijres and collegues!
doi.org/10.7554/eLif...

🚨🚨Job! 🚨🚨Permanent (75% time) job! We are a pretty awesome research group & seek a manager who deals with everything: personnel tasks, organizing retreats, preparing code for teaching / data structures for research... Fluency in German & English essential. stellenboerse.uni-mainz.de#/jgu/job/51527

a group of Drosophila erecta fruit flies on a small food patch. flies on white background

Excited to share our new #biorxivpreprint

We discovered that the fruit fly #drosophila erecta requires food odor to mate and arousal is further enhanced by social group motion.

Cross-species analysis of brain activity reveals a novel gate evolved from within a conserved circuit

shorturl.at/gGYm7

The final version of our paper on how ants and possibly other insects use a crazy mechanism involving extensive transcriptional interference to regulate odorant receptor expression is now open access in my favorite journal, @currentbiology.bsky.social

authors.elsevier.com/sd/article/S...

DEEP seeks Associate Professor in Plant Ecology – apply now! - Department of Ecology, Environment and Plant Sciences DEEP seeks Associate Professor in Plant Ecology – apply now! - Department of Ecology, Environment and Plant Sciences

Come be my colleague! Tenured Associate Professor position opening in Plant Ecology at my department @stockholm-uni.bsky.social www.su.se/department-o...

Simons Postdoctoral Fellowships in Plant Biology Simons Postdoctoral Fellowships in Plant Biology on Simons Foundation

Great new postdoc fellowship for foundational plant research.
If you’re into genetics and genomics of plant reproductive evolution or adaptive convergence (incl in the cool and charismatic nightshades!) I’d be happy to talk about possible projects!
www.simonsfoundation.org/grant/simons...

Excited to see our most recent MS finally out in the world. We used F1 female hybrids (of two behaviourally-isolated cricket species) to show that broad gene expression divergence in the brain underpins context-dependent divergence of female response to male sexual signals.

On my (slow journey) back to Munich from an awesome visit to Stockholm uni. Thanks @rawwiberg.bsky.social and others for the invite!

2 job adverts on a NERC project w myself + @darrenobbard.bsky.social on “What determines the virome: ecology and the environment, evolution, or species history?” early 2026 in
@uniexecec.bsky.social
- Postdoc: jobs.exeter.ac.uk/hrpr_webrecr...
- RA: jobs.exeter.ac.uk/hrpr_webrecr...
Pls share!

Wood tiger moth on leaf. Photo: Juhani Maamela.

Funded PhD position available 🎉 Come and work with me in Helsinki to uncover the pathways producing colourful tiger moth wings. Lots of options for genomics, CRISPR, fieldwork, behaviour experiments… Email with questions! jobs.helsinki.fi/job/Helsinki...

first road trip in our van has been a mixed bag …

Green butterfly sat on a flower.

I'm looking for PhD students to join the lab starting August 2026. We study the evolution of insect chemical signals so if you're interested in evolutionary biology, chemical ecology, molecular biology, behavior, or genetics, this could be a good fit for you! More info here: tinyurl.com/mrxchwfm

José Borrero from Richard Merrill's lab studies how the visual acuity changes with age in different species of Heliconius butterflies and how it is related to brain morphology and neurogenesis. #dzg2025
@borreroja.bsky.social
@dickmerrill.bsky.social

Looking for a PhD? I am advertising two industry sponsored PhD projects. One on black soldier fly genetics with #betabugs and another on searching insect biodiversity for novel enzymes #Syngenta. Get in touch if you are interested!! bbsrcdtp.lifesci.cam.ac.uk/available-ic...

A little late, but I still want to share the good news 🎊: I recently started my #MSCA postdoctoral fellowship. I will assess the impact of climate change on wood ants🐜 & their hybrids 🧬. My project is based at the Uni #Amsterdam with Jonna Kulmuni & @dickmerrill.bsky.social @lmumuenchen.bsky.social

🧪 #source request: Are you a PhD student from Singapore, Japan, Korea, Australia, South Africa, Germany, or China who *recently graduated or will soon graduate?* If so, I'd like to hear about your next steps for a story in @nature.com. Send me a DM, email me, or find me on Signal (aheidt.16).

Excited to soon start my new role as Academy of Finland Research Fellow 🦋🐛I’ll later be advertising a PhD position on tiger moth colour and genomics, and will be speaking at #ESEB2025 this week if you want an idea of what’s going on!

Congratulations Mel!

Join us Opportunities Below are the positions currently open in our lab. PhD position (full-time doctoral funding) We are seeking a highly motivated PhD student to join our team. The goal of the project is…

New PhD position: Butterfly Conservation Genomics 🦋
The project focuses on threatened butterflies in Czech dry grasslands and steppes.
Deadline: September 12, 2025
More info: pavelmatos.wordpress.com/join-us/