A study led by researchers at the University of Reading finds that hummingbirds help bromeliad plants, including pineapples, diversify faster than other pollinator groups. The team compiles records of which animals pollinate 403 types of bromeliads, a plant family that includes pineapples and comprises more than 3,700 species. The researchers report that about three out of four of the bromeliad types in their dataset are visited by hummingbirds. Comparing evolutionary rates, they conclude that lineages associated with hummingbird pollination split into new species at roughly twice the speed observed for bromeliads pollinated by other animals. The findings also indicate that geographic factors contribute to how these plants diversify over time, working alongside pollinator effects. Overall, the study links hummingbird pollination with increased speciation rates in bromeliads, suggesting that the birds’ interactions with these plants can influence the pace at which new species arise.