The Duchess of Cambridge will be inspecting fossils, shells, even dinosaur teeth a little later when she visits the Natural History Museum.
On display there, artefacts from millions of years ago. The collection also includes the skull of a lion who once lived at the Tower of London. And a rather popular gorilla.
Liz Wickham had a sneak preview.
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The Rail Minister said it was not a matter of crowd control but passengers "trying to get home after a long day at work".
It's the first time we'll really notice the change in seasons.
Remaining largely dry through the night.