A 36-million-year cycle of marine biodiversity booms and busts matches the movements of plate tectonics, linking what happens deep below the ocean to what’s happening in it.
In 1836, two Massachusetts residents found a series of three-toed tracks embedded in sandstone in the Connecticut River Valley. The president of Amherst College, Reverend Edward Hitchcock, described the tracks in the American Journal of Science as having been made by giant, three-toed birds. The footprints were, in fact, dinosaur footprints. (This is the largest […]
Although they are not the handsomest or most graceful creatures in the animal kingdom, the Rhinocerotoidea (superfamily) are a fascinating group for research.