Monkeys intrigue me, and they were certainly one of the initial factors in my choosing to go to Costa Rica for a vacation. I knew about the country’s magnificent scenery, including its lush rain and ...

One night, 10-year-old Sebastián Montilla heard a creature moving over a tree branch on his father’s farm in Pijao, Quindío department, one of Colombia’s renowned coffee-growing regions. As he pointed ...

These endangered wild monkeys, called golden lion tamarins, have now been vaccinated against yellow fever, part of a pathbreaking campaign to save a threatened species. "Vaccinating wild animals for ...