This is the mimicry by a palatable species of an unpalatable or noxious species. Several palatable moths produce ultrasonic click calls to mimic unpalatable tiger moths. Men who fight and lose an unworthy war face some obvious and unpalatable choices. Foodstuffs acquire a sickly sweet smell and an unpalatable taste. Many classic dishes rely upon otherwise unpalatable stale bread. The leaves have a bitter and unpalatable taste. Fruits are edible for humans, but are generally considered to be unpalatable. Gregariousness would assist predators to learn to avoid unpalatable, gregarious prey. The figs are edible but unpalatable and dry. It can contain unpalatable and malodourous chemicals that will act as a deterrent to predators. The eastern newt produces tetrodotoxin, which makes the species unpalatable to predatory fish and crayfish. This helps make them unpalatable to birds and other predators. His affinity for Austria was equally unpalatable. Cooper found the cubed food largely unpalatable, which contributed to his lack of eating. Fonseca and the navy's high command were faced with two extremely unpalatable choices.