Wondering how many kinds of trees there are? There’s now a database that can answer that.
Scientists from the U.K.-based Botanic Gardens Conservation International say they have compiled the first-ever comprehensive list of all known tree species, totaling 60,065 different kinds.
The database includes information about where each species is found geographically. More than half of those species are only found in one country, the researchers wrote in the Journal of Sustainable Forestry. And many of them are threatened with extinction.
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