This video of a Snouted Cobra (Naja annulifera) killing a Puff Adder (Bitis arietans arietans) is doing the rounds on social media. Cobras, especially the Snouted Cobra and Cape Cobra (Naja nivea) are well known for eating Puff Adders and often get bitten in the process. They appear to be immune against the venom of other snakes and appear to suffer no ill effects after such bites. Source unknown. | African Snakebite Institute