From southern Africa's pineapple lily to Western Australia's swamp bottlebrush, flowering plants are everywhere. Also called angiosperms, they make up 90 percent of all land-based, plant life. New ...

Cycad cones aren’t always hot. Instead, they follow daily cycles of heating and cooling: Pollen-laden male cones produce a big burst of heat in the late afternoon, and then ovulating female cones warm ...