Vultures are just as terrifying as you thought.

https://www.youtube.com/watch?v=WbC1Ygqzgnw&list=PLrEnWoR732-BHrPp_Pm8_VleD68f9s14-&index=39
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National Geographic got a head start on promoting their January 2016 vulture-themed issue by releasing a video demonstrating what it would be like if vultures were to eat your rotting carcass. They put a camera inside a wildebeest carcass and let 'em rip. The result is pretty disgusting/terrifying. The video also ends with a message about how the vulture population has declined by 95% in some parts of the world due to poisoning by humans and habitat loss. That is of course very sad, but also not a great tactic for making us care about vultures. They should've filmed one wearing a silly hat or something, or made it look like it was lip-syncing Rihanna. Write that down, Nat Geo. 

Sources: National Geographic/YouTube