Two unrelated groups of nectar eaters, hummingbirds and sunbirds, have evolved different techniques to slurp the sweet liquid from flowers. The tongue suctioning employed by sunbirds is unique among ...

While we often think of hummingbirds as sucking nectar from flowers, they’re not sucking the way we suction juice through a straw — they’re really sponging up nectar with their tongues and squeezing ...