One in 4,600
There's a reason why, out of the thousands of known species of roaches, Dubia roaches are a feeder favorite. With exceptionally high natural nutritional value, easy care requiring very little human intervention, and an odor about as offensive as that of wet cardboard, these bugs are a no-brainer. No Chirping, no biting, no dying, no kidding.
We do feel they should come with a disclaimer though. They're so good, your pets may not want anything else.