Land plants evolved 470 million years ago from algae and have since reshaped our world. Throughout their evolution, ferns have undergone a series of changes that have helped them survive on land. For ...
Chinese botanists have discovered large areas of alsophila spinulosa, a rare tree species that has survived since the era when dinosaurs dominated the earth, in central China's Henan Province. The ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback