They are of no use in "tracking". They are just "there". If the lost pet gets picked up and takend to someplace with a chip scanner, they can scan and find the chip serial number and then go to an online database (or call a phone number) to find out owner info.

Tracking devices are those giant bulky collars with antennae that scientists put on wildlife.

Wingnuts have no sense of humor or appreciation of sarcasm unless, of course, they're dishing it out. They may well take this article seriously and I wouldn't put it past them to take it one step beyond: forcibly implant GPS microchips in women to prevent them from leaving their abusive husbands.

Getting the chip in there is just the first step.

Once tracking is normalized, then you start improving the chip.

Instead of just setting off an alarm if an inappropriate partner appears, it can do something noxious.

It can release hormones to create, or moderate, long-term trends, based on current behavior.

If you can afford it, it can release powerful blasts of all kinds of interesting chemicals. Energy drinks for yoni, so to speak. And it can wiggle.

I foresee some REALLY interesting marketing, especially from "edgy" advertisers.