Florida Museum field biologist Johanna Imhoff prepares to measure and tag
a bonnethead shark as biologist Jason Romine pulls in a 600-foot gill net.
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.