Joseph Cawley
@PycnoJoe
Currently at University of Vienna doing my PhD on fossil fishes, particularly pycnodonts. Looks at evolution and palaeoecology in particular.
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As you like the pollen shots so much, here is a bunch of sunflower pollen on some hummingbird hawk moths wingscales.
In November 2024, environmental police in Rochedo, Brazil, stumbled on an unexpected sight: thousands of orange-and-black bumblebee catfish scaling the slippery rocks behind waterfalls on the Aquidauana River. A week later, a team of Brazilian scientists arrived to document the…
Fascinating behaviour captured by snorkelers, and also kinda comical to watch - Nemo fights back! A hawksbill turtle thinks he's getting an easy meal, incoming anemonefish have different plans! A truly symbiotic relationship between anemone fish & anemone. Video by Jenice Chan.
A diver saw something incredibly special at the ocean's surface: this juvenile King-of-the-salmon (Trachipterus altivelis), a kind of ribbonfish that spends most of its time in the deep. 📷 tedjudah on iNaturalist 📍 United States 🔗: inaturalist.org/observations/3… #ObservationOfTheDay
Arthropod Photo of the Week: December 24, 2025 Leaffooted bug and ant Chariesterus moestus Hemiptera: Coreidae By Alberto Sánchez Herrera, Guanacaste, Costa Rica #arthropodPOTW
And with that the last formation piece of the year is done! Monte Bolca is one of the most famous productive fossil lagerstätten in the world! This Italian paradise for Eocene fossils is just as ingrained into paleontology like Solnhofen or Hell Creek. But since we...
甲殻類のハサミの突起はそれぞれの食性や生態に適した形状になっていて、哺乳類の歯列と収斂進化的な感じで似通っているのが面白いんですよね ズワイガニ→イルカ アメリカオオエンコウガニ→キツネ アメリカウミザリガニ→クマ アカテノコギリガザミ→ラッコ ↓に対応する哺乳類の歯列画像貼ります
個人的にかなり面白いのが先端部、大きな突起が上下に2本ずつ生えていて、肉食哺乳類の門歯-犬歯のようにかっちり噛み合う、太い方のハサミでも同様、この構造はよくありそうに思えますが他のエビ・カニやザリガニ系ではあまり見たことがない、獲物を掴むのに有効に思えますが普遍的でない理由とは、、
Small paper on a new species of the pycnodontid Polazzodus from a freshwater deposit in Late Cretaceous Hungary has just been published in Acta Palaeontologica Polonica. Check it out here: app.pan.pl/article/item/a…
🐟💥 Think tool use is just for humans, birds, or primates? Think again! New research reveals tropical wrasses smash open shellfish with rocks—proving fish are smarter (and craftier) than we thought. 🧠🔧 #ReefFish #AnimalBehavior #FishIntelligence phys.org/news/2025-03-r…
How beautiful are the colours on the Common Starling. A winter visitor to Spain. I love the fact that if you zoom right in on the eye you can see me taking the photo😁 #birds #birdphotography #birdsseenin2025 #Alicante #canonphotography
Dragonfly eating a ladybird in mid-air! 😮 Taken last weekend at RSPB Ham Wall in Somerset. 😊
Sword-billed Hummingbird. With a beak like a blade forged by the forest itself. Mist rises from the valley while the first rays of sun ignite the emerald shimmer of its feathers. 📸 birdingcrew (Instagram) ©️
Hoplostethus mediterraneus – the Mediterranean slimehead (Trachichthyidae). Remarkably, slimeheads have been documented to live for over 230 years. This specimen is KU 42748 from the KU Biodiversity Institute and Natural History Museum.
Evolutionary Convergence between Silky Anteater and Drepanosaurus
おはようございます🙂↕️ 今日のトビハゼは、 左右ウインク・まばたきの瞬間😉
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