Wingoysters

Wingoysters are a fictional species of bivalve mollusk featured in the speculative evolution project "E.T. Evolution" by artist and writer John Conway. These creatures are imagined to inhabit the shallow, nutrient-rich waters of the planet Xylos. Their most distinguishing feature, and the source of their name, is the presence of a pair of large, wing-like appendages that extend from their shells.

These "wings" are not used for active flight or propulsion through water in the way a bird's wings are. Instead, they are believed to serve multiple purposes. One primary function is likely for filter-feeding. By slowly undulating these structures, wingoysters can create currents that draw plankton and other small organic particles towards their mouths, which are located at the base of the shell. The large surface area of the wings maximizes the volume of water processed.

Another proposed function for the wing-like structures is defense. When threatened by predators, a wingoyster can rapidly snap its shell shut, trapping small invertebrates or algae within the membranes of its extended wings. This can potentially injure or disorient an attacker, allowing the wingoyster to retract its vulnerable parts. Furthermore, the wings may play a role in reproduction, perhaps by acting as a surface for gamete release or by aiding in the dispersal of larvae. Their coloration is often described as camouflaged, blending with the seabed or aquatic vegetation of their Xylosian home.