Scientists have discovered that ancient cycad plants heat up to emit infrared light, attracting beetles for pollination. This newly uncovered mechanism dates back to the time of dinosaurs and reveals one of the oldest forms of plant–insect interaction. Interestingly, cycads have existed on Earth since the time of dinosaurs and are often described as “living fossils.” Unlike modern flowering plants that depend on bees or butterflies, cycads are mainly pollinated by beetles. Since beetles are small, ... [1590 chars]
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