The Armadillo mob is one of the most unique creatures you can encounter in Minecraft. These shy creatures can be difficult to befriend, as they curl up into a ball when threatened, but they're a lot easier to befriend if you know what to feed them.
Everything You Need to Know About the Armadillo | Simple Minecraft Mob Guide
Many Minecraft mobs have strange food preferences, but the Armadillo may have the strangest favorite food of all. The item you need to feed this creature isn’t one you’re likely to figure out, so here’s what Armadillos eat in Minecraft.
Armadillos can only get spider eyes in Minecraft. This is an odd choice, since it's something you probably wouldn't even consider food, even though you can eat it. Eating this item will poison you, but spider eyes are harmless and actually provide benefits to armadillos that eat them.
Spider Eyes can be quite tricky to obtain. Every time you defeat a spider, you have a one in three chance of obtaining a spider eye as loot. Luck plays a big role in how easy or difficult it is to obtain this item.