SWEET DESTRUCTION
Certain kinds of ants have a passion for the sweet, glandular substance given off by the caterpillar of a large blue butterfly. They can become so “addicted” to it that they even seek out the supplier and carry him to their nest with delight. But they unwittingly bring home an enemy in disguise for the caterpillar gorges himself exclusively on ant larva. Usually such a threat to the colony would be repelled with great vigor, but the adults enjoy the tasty secretions of their guest so much that they are oblivious of the fact that their young are being devoured.
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