The humped bladderwort is a flower that's as strange as its name. It grows in mats in shallow water, it doesn't have true roots, and it bears small, inflated, hair-triggered bladders that it keeps underwater. Any time a tiny swimming animal brushes past one of these bladders, the bladder expands, opens its mouth, and then sucks the animal up and digests it. It's like a Venus flytrap and vacuum in one.