Praying posture hides a stereo hunter with ultrasound ears
A mantis freezes with spiked forelegs folded, looking devout—hence praying mantis. The pose is an ambush cockpit. Compound eyes with up to ten thousand facets track prey in stereo, while many species hear only ultrasound, enough to dodge bat echolocation on night flights.
Mantodea holds more than 2,400 species in about 460 genera and roughly thirty-three families, though revisions since 2019 list twenty-nine families after splitting the old all-purpose Mantidae. They live worldwide in temperate and tropical habitats, closest to cockroaches and termites within Dictyoptera. Hermann Burmeister coined Mantodea in 1838 from Greek mántis, prophet, and eîdos, form. Strictly, "mantid" now fits only Mantidae; most species sit elsewhere. Fossils are scarce—thirty-seven species known by 2022—with Early Cretaceous examples and a 2024 Jurassic report of Lovec from Kazakhstan's Karabastau Formation.
Triangular heads sit on necks so flexible some species rotate nearly 180 degrees. Raptorial forelegs use elongated coxa-trochanter segments, femoral spines, and tibial hooks to pin prey; the delicate tarsus still walks. Macropterous to wingless forms occur; leathery tegmina shield hindwings. Two metathoracic tympana detect ultrasound. Hunting is mostly diurnal and stationary, though hungry individuals stalk and some ground genera sprint like tiger beetles. Large mantises may take lizards, frogs, or small birds; sexual cannibalism sometimes follows mating. Lifespan is typically about a year.
Camouflage is the main defense—leaf mimics, bark flatteners, fire-melanic forms after African and Australian burns, and flower mantises that lure pollinators. Wasps, spiders, birds, and frogs eat them in turn. Ancient Greece, Egypt, and Assyria credited them with supernatural power; cartoons still cast the female as femme fatale. They are among the insects most often kept as pets. Vision-guided strikes and bat-dodging ears show a predator engineered for patience, not prayer.
Source: Mantis
