Plants, in their fossil forms, can reveal a great deal about past environments and climates.
Ferns came along more than 200 million years before the dinosaurs walked the Earth. They were food for plant-eating dinosaurs and they're really great survivors. Heather, age 8, wants to know more.
The fossilized plant Montsechia relied on water to disseminate its genetic material and may rewrite the book on when and how the first flowering plants evolved.