Antennarius—the frogfishes—belongs to the family Antennariidae and epitomisescamouflaged ambush predation. The first dorsal spine transforms into an illicium (“rod”) with an esca (“lure”) that iswaved to entice prey, which are then seized via an ultra‑fast suction strike in mere millisecond...
Except for Protocera, which has no antennae, and higher Diptera and Hymenoptera larvae, which have degenerated antennae, all other species of insects have one pair of antennae. The tentacles grow in the middle and upper part of the insect's two compound eyes. When the insect is active, these...