Anisomorpha is a genus of walking stick insect capable of secreting a substance from glands on the metathorax that can cause an intense burning irritation of the eyes and mouth of potential predators
Anisomorpha paromalus (male) - reared in captivity in the UK
A mouth, also referred to as the oral, is the body orifice through which many animals ingest food and vocalize. The body cavity immediately behind the mouth opening, known as the oral cavity, is also