Forests are shaped by light competition. The trees that grow the tallest have access to the most sunlight, blocking the rays and rendering the shaded space around them inhospitable to shorter trees ...

Millions of songbirds in Southeast Asia are trapped and smuggled each year for keeping as pets or entering in competitions.

Paradox Interactive’s grand strategy games are known for their uncompromising scope and depth in recreating entire eras of history, but never before have they attempted something quite so dizzyingly ...