An ecologist describes her field research and work on the impact of human activity on birds and their pathogens, which has taken her from Alaska to the Gulf of Guinea.
Even the most mutually-beneficial evolutionary relationship can turn sour.
Finches have evolved to feed off blood from red-footed and Nazca boobies – and we’ve seen it first-hand.
Mud blister worms make their homes in the shells of oysters and other shellfish, where they weaken their hosts.
We studied 515 million-year-old brachiopod fossils from southern China. These marine invertebrates were common in the geological past.