With the exception of "Editorial use only" photos (which can only be used in editorial projects and can't be modified), the possibilities are limitless. Learn more about royalty-free images or view ...

It’s undetectable. But slowly, the signs come out. Individual branches on a tree point to signs of a nutrient deficiency or perhaps overwatering. Branches will start to yellow and weaken, turning ...

With the exception of "Editorial use only" photos (which can only be used in editorial projects and can't be modified), the possibilities are limitless. Learn more about royalty-free images or view ...

Electric eels are shown to leap from the water to directly electrify threats. This shocking behavior likely allows electric eels to defend themselves during the Amazonian dry season, when they may be ...