Here's how to deal with those clumps of floating fire ants in Houston

In addition to the catastrophic flooding from Hurricane Harvey, Houston residents have

one more thing to worry about: floating colonies of fire ants. Fire ants have waxy bodies that allow them to repel water. Should a colony find itself waterlogged, ants will protect their queen by forming a mass around her, as well as eggs, larvae, and pupae (ants that are in between larvae and adults). As the ants float, they rotate, so that the underwater ants will get to the top and vice versa. This behavior is totally normal, Molly Keck, an entomologist at Texas A&M AgriLife Extension Service, tells The Verge. "We usually call fire ants flood water species,” she says. “They've been known well before this hurricane to float on top of water like that.”                                                                                                https://www.theverge.com/2017/8/29/16221842/hurricane-harvey-houston-fire-ants