About the hedgehogs' natural immunity
If you want to know about the hedgehogs' natural immunity I may quote you this: "
Hedgehogs natural immunity
Like opossums, mice, and moles, hedgehogs have some natural immunity against some snake venom through the protein erinacin in the animal's muscular system, although it is only available in small amounts and a viper bite may still be fatal. In addition, hedgehogs are one of four known mammalian groups with mutations that protect against another snake venom, α-neurotoxin. Pigs, honey badgers, mongooses, and hedgehogs all have mutations in the nicotinic acetylcholine receptor that prevent the snake venom α-neurotoxin from binding, though those mutations developed separately and independently."https://kids.kiddle.co/Hedgehog Content is available under CC BY-SA 3.0.