Big tree-like cactuses known as saguaros in Arizona, USA
Susan E. Degginger / Alamy
The next is an extract from our nature e-newsletter Wild Wild Life. Signal as much as obtain it free of charge in your inbox each month.
Cacti are one of many world’s most beguiling and simply recognised plant households, however how and why the spiky household developed into its many various styles and sizes has been a thriller. Now, researchers are untangling the traditional historical past of the Cactaceae, revealing some stunning forces that formed these crops, and prompting concern for his or her future.
Fossils can’t inform us a lot about…
