The glass-winged butterfly is brush-footed, the transparency of its wings results from the combination of the low reflection of the light impinging on the wings' surface.
Its transparent body is covered with polka dots of pigment-filled cells, and below its eyes are bioluminescent organs.
The fish is only fully transparent when it is young, and later develops its signature blue and yellow markings.
The pharaoh ant is a small yellow or light brown, almost transparent ant notorious for being a major indoor nuisance pest, especially in hospitals.
The tortoise shell beetle is not completely transparent, but it does have a carapace that is nearly invisible. The purpose of the transparent outer shell is to fool potential predators, as it reveals markings on its back that act as a warning.
It is recognized for a highly unusual transparent, fluid-filled dome on its head, through which the lenses of its eyes can be seen.
European Eels change colors several times throughout their lives, they start transparent before turning brownish-yellow on their sides and belly.