during the Cretaceous period. That's relatively recent in geologic time: If all Earth's history were compressed into an hour, flowering plants would exist for only the last 90 seconds. But once ...

Professor Janis said, "The vegetational habitat was more important for the course of Cretaceous mammalian evolution than any ...

Today, about 90% of plants are flowering plants, also known as angiosperms. While the origin of flowering plants may go back as far as the Triassic Period, we don't see much evidence of them in the ...

Flowering plants were spreading across the landscape ... of more than half the planet's species at the end of the Cretaceous remains a matter of scientific debate. But the shifted continents ...

Small fossils show mammals moved to the ground before the dinosaurs vanished. New plants changed habitats, giving better food ...

Other groups of organisms also diversified. The first snakes evolved during this time, and by the end of the Cretaceous, flowering plants were a much more common part of Earth's plant life. Various ...