Magnolias Trace Back About 95 Million Years, Before Bees
Magnolias trace back about 95 million years, before bees, so their tough flowers evolved to be pollinated by beetles.
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Magnolias are part of one of the oldest surviving lineages of flowering plants, with fossil and evolutionary evidence placing the magnolia family at roughly 95 million years old. That puts their early history in the Cretaceous, when dinosaurs were still widespread and modern bees had not yet developed their present-day role as pollinators. Instead, magnolia flowers are strongly associated with beetle pollination. Their flowers have tough reproductive parts that can withstand the rough feeding behavior of beetles, helping the insects move pollen from one flower to another. The relationship is a useful reminder that flowering plants did not evolve around bees alone. Beetles, flies, butterflies, birds, bats, wind, and other agents also pollinate flowering plants. The popular idea that magnolias are unchanged living fossils needs some care, because modern magnolia species have continued evolving and the exact age of the Magnolia genus is different from the age of the broader magnolia family. Still, their deep evolutionary history makes magnolias an especially striking example of an ancient flowering-plant lineage whose pollination strategy reflects a world very different from today.
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