Snakes have an extremely varied diet, feasting on anything from mammals and birds, to lizards, fish, insects, worms, snails and even each other.
In fact, it's quite normal for one snake to prey on another, if the opportunity presents itself. Some species even specialise in hunting and eating snakes – a behaviour known as ophiophagy.
North America's kingsnakes are one of the best examples of an ophiophagous predator. Then there's Asia’s king cobra.
This extraordinary footage, captured in an Indian forest by the BBC Natural History team, shows an ophiophagous king cobra in action devouring an Indian cobra.
In another video filmed by BBC Natural History, an Indian cobra can be seen with its hood spread in a bid to ward off an approaching king cobra.
Top image: king cobra. Credit: Jerome Boh/Getty Images
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