National Geographic announced it has acquired the streaming rights to "Ghost Elephants," which is written, directed and narrated by Werner Herzog and features National Geographic Explorer Steve Boyes.

Or will they go nowhere, discovered before they’re moved and turned in by an honest person? National Geographic needs your help to protect elephants and to continue reporting on wildlife crime.

Captive wild animal encounters are hugely popular, thanks partly to social media. But our investigation shows many creatures ...