Department of Paleontology staff members Tom Deméré and Kesler Randall measure the length of the tusk discovered at the 16th and Market project site.
Conspicuous armaments are good visual proxies for fighting ability.
Bats, reservoirs for such viruses as Ebola, are increasingly villainized and require special conservation.
After centuries of moving through the Irish countryside, a group known as Travellers has come to rest.
Algae, plants and humans: three groups of organisms that used chemistry to change the planet.