Many social wasp species (Vespidae) exhibit mimicry mimicry, where a group of unpalatable species benefit from sharing the same kind of warning (aposematic) colouration.

It is considered one of the best of the edible Tylopilus-a genus that is usually associated with bitter-tasting, unpalatable species.

The harmful species (the model) might have spines, stingers, or toxic chemistry, while its apparent double has no defence other than resembling the unpalatable species.

Protection of the mimic from predators is afforded by its resemblance to the unpalatable species, which the predator associates with a certain appearance and a bad experience.

The animal can survive by drinking a saltwater slush that is unpalatable to other the domestic camael species.

Müller's great discovery concerned the resemblance between two or more unpalatable species which are protected from predators capable of learning.

This is the mimicry by a palatable species of an unpalatable or noxious species.

In both terrestrial and marine environments, herbivory of palatable species is reduced when they occur with unpalatable species.

Plants that cannot withstand browsing and trampling are replaced by browse-resistant or unpalatable species that generally have a higher proportion of wood to foliage.

Around coral reefs, the fish cultivate only certain species of algae, weeding out unpalatable species and keeping out other grazing fish.