They both contain insecticides called pyrethrins, used in ancient Persia. Today we use them in lice-killing shampoos.
For millennia, humans have exploited galls for medicine, fuel, food, tanning, and dyeing. Some people have considered them miraculous.
Despite all the whips and spurs involved, nineteenth-century Americans believed racehorses loved a little manly competition.
Some 19th-century naturalists believed that bugs could think and should therefore definitely know that biting is out of line.
This plant’s animal-like behavior and alleged love-provoking abilities have sparked the imagination of everyone from early modern yogis to today’s scientists.
Reputed to be a less intelligent bird species, puffins have been observed scratching themselves with sticks.
The 19th-century naturalist Alfred Russel Wallace created a visualization that tied different species to specific regions of the world.
Paleontologists recently solved the riddle of whether two fossil specimens were young T. rexes or a whole different species.
Trump's border wall threatens habitats in Arizona's Sonoran Desert. What happened when the area was bulldozed in the 1950s?
But one hasn't been seen in the U.S. since 1995, not long after the end of the last reintroduction program.