Most cockroach species do not produce milk, however the pacific beetle cockroach is the only known cockroach to give birth to live young, as opposed to hatching eggs, and has been shown to pump out a type of ‘milk’ containing protein crystals to feed its babies. The baby cockroaches ingest this milk, where it crystallizes in their stomachs. A team of scientists from India, France, Japan, Canada and the National Institutes of Health (NIH) in America have been analyzing these crystals.
The fact that an insect produces milk is pretty fascinating, but what fascinated researchers even more was the fact that a single one of these protein crystals contains more than three times the amount of energy found in an equivalent amount of buffalo milk (which is also higher in calories than dairy milk from cows). The roach milk’s nutritional level is four times higher than cow’s milk.