In Our Time: Science cover image

In Our Time: Science

Pollination

Apr 3, 2025
Join Beverley Glover, Director of the Cambridge University Botanic Garden, Jane Memmott, a Professor at the University of Bristol, and Lars Chittka, an expert in bee cognition at Queen Mary University. They delve into the remarkable dance between plants and their insect pollinators. Discover how plants attract insects with vivid colors and enticing scents, and learn about the sophisticated intelligence of bees in navigation and decision-making. They also discuss the crucial role of pollinators in agriculture and the alarming decline of pollen availability in Britain.
50:10

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Quick takeaways

  • Pollination, primarily facilitated by insects, is essential for the sexual reproduction of most plants and increases genetic diversity.
  • Plants have evolved various attractive traits, such as colors and scents, to entice pollinators in exchange for nutrients like nectar.

Deep dives

The Process of Pollination

Pollination is a crucial process for the sexual reproduction of most plants, wherein male sex cells are transported to female reproductive parts. Plants produce pollen grains, which are water-resistant and decay-resistant, allowing them to survive in the environment before reaching another plant. Pollination typically occurs through wind, water, or animal assistance, particularly insects, which help transfer pollen to fertilize egg cells. This relationship has developed over millions of years, highlighting the complexity and evolutionary success of pollinating plants.

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