Articles for author: Sameen David

Sameen David

Rethinking therapsid phylogeny through Bayesian and parsimony analyses

New Study Revolutionizes Understanding of Therapsid Evolutionary Tree

Therapsids, the ancient synapsids that bridged the gap between reptiles and mammals, flourished across Permian and Triassic landscapes some 280 million years ago. These creatures, often called mammal-like reptiles, developed key mammalian traits like upright limbs and differentiated teeth long before true mammals appeared. A recent study published in Scientific Reports on March 11, 2026, ...

Sameen David

Bromacker is 4 million years older than previously thought

Bromacker Fossils Reveal Permian World 4 Million Years Earlier

Thuringia, Germany – Scientists have pinpointed the age of the renowned Bromacker fossil site with unprecedented precision, revealing it formed 4 million years earlier than long assumed. This adjustment, from roughly 290 million years ago to 294 million years ago, stems from analyzing a razor-thin volcanic ash layer just millimeters thick above the treasures it ...

Sameen David

Researchers find ‘remarkable’ hot-pink insect in Panama rainforest

Panama Katydid’s Hot-Pink Phase: A Masterful Camouflage Evolution

Barro Colorado Island, Panama – Researchers exploring the island’s lush rainforest encountered a striking anomaly one night in March 2025: an adult female katydid glowing hot pink under a station light. This rare form of Arota festae, a leaf-mimicking species typically pale green, prompted scientists to document its unexpected transformation. Their observations revealed a potential ...

Sameen David

Trophic ecology outweighed intrinsic constraints in shaping skull evolution of carnivorous Permian synapsids

Diet Drove Skull Evolution in Permian Carnivores, Overcoming Evolutionary Limits

Over 260 million years ago, carnivorous synapsids emerged as Earth’s first truly terrestrial apex predators amid the harsh ecological upheavals of the Permian period. These mammal ancestors dominated landscapes following the collapse of Carboniferous rainforests, filling top roles in newly forming food webs. A recent study reveals that their skull shapes primarily reflected adaptations to ...

Sameen David

A Thrilling Launch Draws Dino Devotees

Mountain Fossils Beckon: Sweetwater County Museum Kicks Off Dino-Filled History Series

Sweetwater County, Wyoming – Local history enthusiasts boarded a chartered bus on April 11 for the premiere outing of the Sweetwater County Museum Foundation’s 2026 “Highway to History” series. The all-day expedition targeted fossil hotspots just across the border in Utah, drawing crowds eager to connect with the region’s deep prehistoric roots. Participants traversed rugged ...