Researchers from the Natural History Museum have “worked alongside a group of materials scientists to investigate the properties of the pollen wall, including its smoothness, flexibility and chemical makeup. These were then compared between modern and fossilised pollen.
The researchers found that the pollen walls contained a significant amount of calcium, which might act to strengthen the cell wall as it does in bone. They also found that the range of flexibilities between ancient and modern pollen was broadly similar, suggesting that the nanofoam can maintain its properties even over 165 million years.”
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