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. Fossil remains of adults and juveniles suggest that these peculiar dinosaurs took care of their young.
A fossil whale collected by a group of undergrads from a drainage ditch two decades ago has turned out to be an important transition from archaic to modern species. This and three other newly discovered specimens of Albertocetus, an early dolphin-like species, provide important anatomical information about the earliest ancestors of the living toothed whale lineage.
Big, fearsome, and dangerous. Dinosaurs remind many people of fantastic combat scenes that result in grave injuries, or a painful death. In reality, fighting is no more than just a tiny slice of any animal’s life. However, fossils found with evidence of injuries tell a tale of how the extinct animals interacted with one another.