As I was looking up some information on diabetes, I happened across this gem, in Principles of Diabetes Mellitus:
Physicians in India at around [1500 BC] developed what can be described as the first clinical test for diabetes. They observed that the urine from people with diabetes attracted ants and flies. They named the condition “madhumeha” or “honey urine”.
I suppose that given ants’ potential ability to predict earthquakes, I shouldn’t be surprised that ants can detect diabetes. As an aside, I didn’t know that higher glucose in urine is a result of diabetes! Yet again, the ants outsmart me.