Theres basically no lore for Ferasans outside the STO zen store which is a shame because these psychic purple cat warriors deserve so much better. So I want to use this as a place to collect the tidbits of information we have (or that ppl have made up).
There's plenty actually. The catch is that the Ferasans are actually the Kzinti from The Animated Series. The name had to be changed due to some legal issues, as Larry Niven (Who originally introduced them into Star Trek) actually wrote them for his own IP prior.
Yeah i know they're based on the Kzinti but there's enough differences (such as ferasan females being fully sentient, even though many other kdf races only have males playable anyway so they could've easily stuck more closely to the kzinti inspiration) that I think it would be interesting to explore from the perspective of ferasans being their own unique species.