It seems that some harvestmen arachnids (order: Opiliones) feature species specific emojis on their backs, to assist in identifying fellow members of the same species. And they apparently glow in ultra-violet light, making them visible to one another in the dark.
phys.org
Some of the emojis are even cute.
Bob
Harvestmen arachnids apparently use fluorescent patterns for species recognition
A research team from Munich has identified a previously unknown communication mechanism in harvestmen. Five closely related species show species-specific, strongly fluorescent structures on their backs that become especially visible under ultraviolet light. The results suggest that these...
Some of the emojis are even cute.
Bob
