Tetragonisca angustula, a stingless bee native to South America. Flowers in the neotropics are incredibly diverse. How did they get that way? One hypothesis was that they evolved to work with different kinds of pollinators to help them reproduce: mostly switching between insects, hummingbirds, and bats. A new study came to the opposite conclusion: that flower diversity grew once they started specializing to hummingbird pollinators. Read more about it in our infographic on coevolution (link in bi