Sphinxes and Feltaurs are two closely related sophont species hailing from the same planet, Feltaurs being larger and more cursorial and Sphinxes being smaller and more solitary and disjointed with their pack behaviour. Sphinxes, However, Are known for their elaborate mating displays and flashy methods of communication. The two species didn't evolve side-by-side, With first contact only being established after both of them had advanced rather significantly.

Here is a Sphinx attempting to court a Feltaur, In which you can see their gular sacs. The feltaur is, Understandably, Rather confused by this, As they lack the flashy courtship displays and lekking behaviours that Sphinxes have.

Some speculative biology stuff :) Hope this won't turn away anyone who followed for furry art LOL

I like doing alien worldbuilding for my spore species in my free time. I hope this is intriguing.