@gdebruyn.bsky.social
Rainbow-like colours in the fur of a tropical rat (Otomys tropicalis)
Super happy to share the first chapter of my PhD, published in the Journal of the Royal Society Interface ✨🐀 royalsocietypublishing.org/doi/10.1098/...
Iridescence in mammals is not as rare as we thought, but it’s all created in the same way!
Mammal colours boring? Guess again (mostly a note to myself). Superstar Jess has been finding iridescence colours across mammals! royalsocietypublishing.org/doi/10.1098/...
11.09.2025 11:47 — 👍 9 🔁 5 💬 0 📌 1
Some stick-friends.
12.06.2025 08:53 — 👍 1 🔁 0 💬 0 📌 0
Yesterday I had the pleasure of presenting our research on phasmid eggs at the international stick insect meeting organized at the Royal Belgian Institute of Natural Sciences. A big thanks to the organizers for the opportunity and creating such an amazing event!
28.04.2025 13:34 — 👍 5 🔁 1 💬 0 📌 0
Gerben presents his work on phasmid egg colouration.
Wonderful opening talk on phasmid egg colouration by @gdebruyn.bsky.social at the yearly International Stick Insect Meeting.
27.04.2025 15:00 — 👍 3 🔁 1 💬 0 📌 0
As an early career researcher there is no better feeling than seeing someone cited your paper who isn’t a coauthor.
12.04.2025 11:49 — 👍 1 🔁 0 💬 0 📌 0
🧵 1/ New study on squamate color evolution hits the press: we show that brightness variation in lizards & snakes is strongly linked to habitat openness 🌞 This reveals how ecological pressures drive color evolution in one of the most diverse groups of tetrapods www.nature.com/articles/s41...
18.03.2025 08:08 — 👍 74 🔁 24 💬 2 📌 4
A pigeon sitting beside its simple nest—just a few twigs, nothing fancy, but it works. One egg rests inside, soon the city will welcome another little pigeon to its flock.
In the final stretch of my PhD thesis on nests, I keep thinking about this pigeon's masterpiece. It doesn’t have to be perfect, just done. Let’s do this! 🐦🪶
#PhD #PhDsky 🧪
This is a major collaborative effort, involving 8 countries across 3 continents 🌎🌍🌏
28.01.2025 22:28 — 👍 2 🔁 1 💬 0 📌 0
Color evolution wasn’t inevitable - was it? In a recent article for @uk.theconversation.com, I explore some of the latest research on how animals and plants co-evolved to bring vibrant colors into our world
theconversation.com/why-did-life...
After the extinction of non-avian dinosaurs, mammals may have been free to diversify into the wide array of colors, from red pandas, to grey koalas, and striped tigers!
🧵(6/6) picture credits to
@michaelnicolai.bsky.social
and André Zambolli!
The fossils that we studied are extinct mammals with distinct life style, from living on ground, to swimming, and gliding through the treetops like modern day flying squirrels.
🧵(5/6)
While modern mammals had a wide variety in melanosome shapes, all of the fossils had relatively large and long shaped melanosomes that our models predicted would produce dark colors!
🧵(4/6)
We were able to determine the color thanks to the pristine fossilization of the hairs and melanosome pigments! Their shape and size was preserved in rock, and we found that, in living mammals, these shapes correlate with their color!
🧵(3/6)
Mammals evolved in the shadows of dinosaurs, where small and nocturnal habits helped them avoid larger predators! However, almost nothing was known about their coloration, which can influence their ability to camouflage!
🧵(2/6) Picture by Jonathan Goldenberg
!
We are very excited to share our new paper in Science! We show that a diverse group of Jurassic and Cretaceous mammals all had darkly-colored fur.
Well how did we do this? Let' start at the beginning!
🧵 (1/6) @science.org
In our newest paper we highlight the similarities and differences in biomineralization patterns of different animals eggshells!
pubs.rsc.org/en/Content/A...
