“Cats thrive on having access to the vertical world,” says cat-behavior expert Jackson Galaxy. While there are often existing vertical spaces in your home, a cat tree is a good way to provide a ...

Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Leaves are the food factories of the tree. Powered by sunlight, the green ...

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Anna Nordseth is an ecology writer and Duke University Ph.D. candidate specializing in tropical forest ecology, conservation research, and biodiversity. Boreal forests, or taiga, are found between 50 ...