3 个月on MSN
Fern stems reveal secrets of evolution – how constraints in development can lead to new forms
There are few forms of the botanical world as readily identifiable as fern leaves. These often large, lacy fronds lend themselves nicely to watercolor paintings and tricep tattoos alike. Thoreau said ...
Probably the first pioneer plants to arrive in Hawaii were mosses and ferns. Ferns have been around for over 360 million years. Giant tree fern forests were common for millions of years but they gave ...
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