Articles
Sail-back dinosaur got flashier with age
Detailed examination of this cousin of Iguanodon shows that its big sail evolved to show off to mates and rivals.
Earth Archives
Pterosaurs maintained high diversity until the end
Two Moroccan phosphate mines have yielded dozens of specimens from at least seven different pterosaur species in three different families. The high diversity of sizes and ecological roles found there suggests that pterosaurs remained competitive w...
Earth Archives
Ice cream cone with a trapdoor finds its place on the Tree of Life
Hyoliths, an enigmatic group of Paleozoic invertebrates have long puzzled paleontologists. A new analysis of hundreds of specimens shows that they are close relatives of brachiopods or lamp shells.
Earth Archives
The evolution of filter-feeding in whales
Baleen whales underwent a number of evolutionary transitions on the journey from small hunters to giant filter-feeders. Recent research shows that there were a large number of experimental methods of feeding, including the origin of filter feeding...
Earth Archives
The dinosaurs that dug their own grave
Recent discoveries in Montana and Idaho have uncovered a previously unknown behavior in dinosaurs: digging. These creatures, known as orodromines, had robust and muscular arms, shoulders, and hips that were well-suited to digging out burrows. Foss...
Earth Archives