Texas fire ants

I was greeted at my door step with this sight today. It looks like a lizard or a snake (I didn't get too close) died and the ants were hungry. Usually, all the ants dine on are earth-worms. They must be picky eaters because they never finish the worms off like they are doing to this poor creature. I wish the ants would devour those earth-worms instead of leaving the shriveled up, mummified carcasses on my driveway.

Ants are close to the top of the insect food chain. They are up there with spiders and wasps. But they have no defense against a broom!