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Dr Hannah M. Rowland

@hannahmrowland.bsky.social

870 followers 560 following 55 posts

Curious how toxins drive the evolution of new traits 🐸🦖🐍🧪 In awe of nature’s cleverness and strangeness Enthusiastic champion of caterpillars 🐛 @mpi-ce @livuni-ives hannahrowland.co.uk

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Dr Hannah M. Rowland @hannahmrowland.bsky.social · Feb 12

Things that Darwin hated, a 🧵

To Charles Lyell, 1st Oct 1861

But I am very poorly today & very stupid & hate everybody & everything. One lives only to make blunders.— I am going to write a little Book for Murray on orchids & today I hate them worse than everything

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Reposted by Dr Hannah M. Rowland

womensartbluesky.bsky.social @womensartbluesky.bsky.social · 3d

Linocut by #printmaker Mariann Johansen-Ellis #WomensArt

Blue and white print featuring a stylised country walk with bending path, animals figures and features of the countryside as well as text stating 'A walk along country lanes is happiness'

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Dr Hannah M. Rowland @hannahmrowland.bsky.social · 3d

What an amazing group of 🐛

@anurag-asclepias.bsky.social has written about his encounters with Euchaetes egle: how the caterpillars handle latex, & even caused him a nasty rash from their pupal hairs. Such small & formidable natural chemists!

agrawal.eeb.cornell.edu/2018/11/24/c...

HL Eisthen, defective human product @hleisthen.bsky.social · 3d

Cool! I have milkweed tussock moths (Euchaetes egle) here in my yard in Michigan, USA. As I understand it, they sequester glycosides from the milkweed and, as adults, produce calls that advertise their unpalatability to bats. Interesting clade!

Two caterpillars on a partially-eaten milkweed leaf. The caterpillars are orange, black, and white, with long tufts of protruding hairs.

Dr Hannah M. Rowland @hannahmrowland.bsky.social · 3d

🍄 FLY AGARIC (Amanita muscaria)

This fairy-tale fungus forms mycorrhizal partnerships with trees, trading nutrients for sugars underground. Its red & white cap signals potent compounds (ibotenic acid & muscimol) that can cause hallucinations and delirium.

Strictly for admiring, not nibbling!

Dr Hannah M. Rowland @hannahmrowland.bsky.social · 3d

Calliteara pudibunda, the pale tussock moth caterpillar. Brilliant yellow tufts and an ultra-black stripe – a striking warning. When disturbed, it curls into a conker-like ball. Those hairs are likely irritating to the skin, a fine example of visual and chemical defence.

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Reposted by Dr Hannah M. Rowland

S. Craig Roberts @scraigroberts.bsky.social · 4d

We are advertising for a postdoc with skills in psychophysiological measurement for a project on smell and emotions. Closing date is 30th October. Please spread the word.
www.stir.ac.uk/about/work-a...

Vacancy details | About | University of Stirling

Job vacancy at the University of Stirling.

www.stir.ac.uk

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Dr Hannah M. Rowland @hannahmrowland.bsky.social · 5d

In a world bursting with colour, why go monochrome? I joined Tim Caro & Martin How on the BBC World Service’s Crowdscience to explore why some animals stand out in stark contrast. From 🦓🐼🐧 it turns out the answers aren’t always so black & white 😉

www.bbc.co.uk/sounds/play/...

CrowdScience - Why are some animals black and white? - BBC Sounds

Why are zebras so stripy? Why do penguins wear tuxedos?

www.bbc.co.uk

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Dr Hannah M. Rowland @hannahmrowland.bsky.social · 6d

Charles Darwin, patron saint of off days.

Reposted by Dr Hannah M. Rowland

Gabrielle Davidson @drgdavidson.bsky.social · 8d

📢🚨Please share! We’re hiring! 📢🚨Have a strong interests in wildlife ecology and gut microbiome bioinformatics? 3 year Senior Research Associate for NERC Pushing the Frontiers grant. Apply here: vacancies.uea.ac.uk/vacancies/18.... Informal enquiries welcome! drgldavidson.github.io/ACMEresearch

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Reposted by Dr Hannah M. Rowland

BirdLife International @birdlifeglobal.bsky.social · 12d

Today is #WorldCassowaryDay !🌏

The blue-faced Southern Cassowary is a large bird native to Australia, Papua New Guinea and Indonesia.🌳

By eating fallen fruit, they play a fundamental role in seed dispersal, helping to maintain rainforest diversity.

Read more👉 datazone.birdlife.org/species/fact...

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Reposted by Dr Hannah M. Rowland

Kew Gardens @rbgkew.bsky.social · Aug 20

We might finally have a way to save struggling bee colonies... with a yeast-powered superfood! 🐝💪

In a major breakthrough, scientists from Kew, University of Oxford, University of Greenwich & Technical University of Denmark engineered a supplement mimicking the nutrients bees get from pollen 👇

Close-up of honeybees feeding on a bright yellow, nutrient-rich supplement placed on hive frames. The engineered feed mimics essential pollen sterols.

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Reposted by Dr Hannah M. Rowland

SFB 1528 - Cognition of Interaction @sfb1528.bsky.social · 12d

Job Alert!

Come and join our team at our field site CRP Simenti in Senegal. Julia Fischer @julxf.bsky.social (@primatenzentrum.bsky.social) is recruiting a #Research_Manager. Work with the wonderful lovely Guinea baboons and manage our long-term data collection.

👉 www.dpz.eu/karriere/ste...

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Reposted by Dr Hannah M. Rowland

MothProf @mothprof.bsky.social · 13d

I have a job opening in my lab. If you are interested in bird behaviour and predator prey interactions please take a look! werkenbij.uva.nl/en/vacancies...

Vacancy — Postdoc Position in Decision Making in Birds

Are you an expert in animal behavior? Do you have experience working with birds? The Institute of Biodiversity and Ecosystem Dynamics (IBED) is looking for a motivated researcher to investigate the ro...

werkenbij.uva.nl

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Dr Hannah M. Rowland @hannahmrowland.bsky.social · 13d

🌍🦋 Across 6 continents, 21 sites & 15,000 paper moths, we joined a worldwide experiment led by @wlallen.bsky.social & Iliana Medina, showing how ecological context shapes the evolution of animal colouration.

Proud to be part of this global team effort: doi.org/10.1126/scie...

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Reposted by Dr Hannah M. Rowland

Will Allen @wlallen.bsky.social · 13d

📢🦋 Our paper ‘Global selection on insect antipredator coloration’ is out and featured on the cover of @science.org

We ran a huge experiment to find out how ecological context favours camouflage and warning colouration as antipredator strategies. 1/6

www.science.org/doi/10.1126/...

A white-fronted bee-eater (Merops bullockoides) decides whether to consume a warningly colored white-barred acraea butterfly (Telchinia encedon). Photo (c) Mike Rowe

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Reposted by Dr Hannah M. Rowland

Bibiana Rojas @biobiiana.bsky.social · 14d

"Global environmental factors impact the evolution of adult hemoglobins in squamata reptiles (lizards and snakes) and terrestrial turtles" New paper by the super talented Juan D Carvajal-Castro et al.! 🐍🦎🐢 #CienciaCriolla 🌎🧪
doi.org/10.1093/gbe/...

Global environmental factors impact the evolution of adult hemoglobins in squamata reptiles (lizards and snakes) and terrestrial turtles

Abstract. Convergent evolution of oxygen transport mechanisms arises from respiratory proteins adapting to similar environmental pressures. We examined thi

doi.org

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Reposted by Dr Hannah M. Rowland

Melanie Brien @melbrien.bsky.social · 14d

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...

Wood tiger moth on leaf. Photo: Juhani Maamela.

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Reposted by Dr Hannah M. Rowland

Max Planck Institute for Chemical Ecology @mpi-ce.bsky.social · 15d

A recipe from two eras for protection against bark beetles: Andrew O’Donnell et al. show in PNAS that some resin diterpenes are older than conifers themselves, while others developed independently—presumably to protect against bark beetles. www.ice.mpg.de/510162/PR_OD...

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Reposted by Dr Hannah M. Rowland

The Royal Society @royalsociety.org · 16d

Born #OnThisDay in 1896 was Dorothy Needham FRS, an English biochemist whose research made her a leading authority on the biochemistry of the muscle. She was elected a Fellow of the Royal Society in 1948. #WomenInSTEM

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Reposted by Dr Hannah M. Rowland

Stuart Wigby @stuartwigby.bsky.social · 16d

New out in Molecular Ecology! In which we show that small males try harder when it comes to seminal fluid proteins. w/ @ju-morimoto.bsky.social @iremsepil.bsky.social @becks-seascience.bsky.social
onlinelibrary.wiley.com/doi/10.1111/...

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Reposted by Dr Hannah M. Rowland

Proceedings of the National Academy of Sciences @pnas.org · 27d

In #pterosaurs, hollow bones appeared before flight. Rare fossil evidence reveals the precursors to air-sac-studded skeletons. In PNAS Journal Club: www.pnas.org/post/journal...
#FlyingReptiles #paleontology #Caiuajara #Brazil #dinosaurs

Pterosaurs, such as these Brazilian Caiuajara, had air sacs in their skeletons. Recent work suggests these traits evolved in their flightless predecessors at least 100 million years earlier.
Image credit: JULIA D'OLIVEIRA / Science Source.

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Reposted by Dr Hannah M. Rowland

Jarome Ali 🇹🇹 🏳️‍🌈 @jarome.bsky.social · Aug 13

Pick an idiom: "more than meets the eye", "beauty more than skin [feather] deep" etc.

In work led by Rosalyn Price-Waldman, we describe a hidden (and ignored!) black or white layer found below the visible surface of bird feathers which helps make bird colours so striking!

🧪 🪶 #colsci

Songbirds play optical tricks to make their feather colors ‘pop’

Concealed black or white bands on feathers boost the vibrancy of bird plumage

www.science.org

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Reposted by Dr Hannah M. Rowland

Emily Troyer @fishfetisher.bsky.social · Sep 1

Excited to announce that the 1st paper from my postdoc is now out in @currentbiology.bsky.social ! Using a large dataset of 3D preserved fossils, we explore the diversification of jaws in early bony fishes. 1/15
www.cell.com/current-biol...

Macroevolutionary role reversals in the earliest radiation of bony fishes

Troyer et al. examine lower jaw evolution in Silurian-Devonian bony fishes and find substantial differences in patterns of morphological disparity, rates of shape evolution, and functional diversity b...

www.cell.com

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Reposted by Dr Hannah M. Rowland

Norfolk Ponds Project @norfolkponds.bsky.social · Aug 25

Hello @bsky.app. we are Norfolk Ponds Project - a science-led partnership NGO focused on pond restoration & #ghostpond ressurection. We aim to educate, lobby & inspire others on ponds. We used to Tweet & had 5000+ followers. ***Please follow & help us achieve the same here***!!!

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Reposted by Dr Hannah M. Rowland

Laura Kelley @lauraakelley.bsky.social · Aug 26

Deadline for submitting an abstract to give a talk or poster is this Friday!

ASAB Winter 2025 @asab-meetings.bsky.social · Aug 5

ICYMI : #ASABWinter2025 will take place from December 15-16, once again in lovely Edinburgh!

Registration is now open 🎉 Abstract submission deadline for posters and talks is August 29 🏃‍♀️🏃🏃‍♂️

More information here: asabwinter.github.io/2025/

Winter ASAB 2025 December 15-16 Edinburgh How sensory information affects behaviour.

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Dr Hannah M. Rowland @hannahmrowland.bsky.social · Aug 22

This magnificent ancient oak @kneppwildlandfdn.bsky.social is one of many around the U.K. that are heavy with acorns — a reminder of how oak trees quietly sustain whole worlds beneath their branches. Hundreds of species depend on them: birds, mammals, fungi, lichens, and countless insects.