Earth Matters

9 charismatic animals with political ambitions

21 things you may not know about squirrels

Canuck the crow likes to create havoc

For a dose of pure wilderness, check out Finland's 40th national park

How lizards find their way home

Finches add cigarette butts to their nests to ward off pests

How do you transplant a giant sequoia? Very carefully

Yellowstone grizzlies to be removed from Endangered Species List

The real reason why eggs come in so many shapes and sizes may be childishly simple

Lightning: How much do you know about this striking weather phenomenon?

California is generating so much solar energy, it's paying other states to take it

Kazakhstan's Altyn Emel boasts deserts, forests — and a sand dune that sings

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