The Plants & The Bees – Plant Reproduction: Crash Course Biology #138

Hank gets into the dirty details about vascular plant reproduction: they use the basic alternation of generations developed by nonvascular plants 470 million years ago, but they’ve tricked it out so that it works a whole lot different compared to the way it did back in the Ordovician swamps where it got its start. Here’s how vascular plants (ferns, gymnosperms, and angiosperms) do it.