The Auric Floof (Pseudofelis aureus) is, if tales are to be believed, the most dangerous beast in the known realms. Its often shed hair contains allergens known to make even the stony skinned saurians itch. Their claws, retractable and known to scratch diamond windows, are nearly as terrifying as their ability to yowl in subsonics making bones shatter. The humans gasped when they saw these ferocious ghastlinesses, shrieking ‘Kittens! Space kittens!’ The rest of the galaxy’s residents rolled their eyes, shook their antennas or wriggled their sense organs in sheer despair. The Floofs recognized potential laps and moved into humanity’s homes. The other beasts humanity had adopted - the blue howlers (hollow snake things covered with shimmering scales, known for their bellows), the hell parrots (more shriekers but oh so beautiful) and the Cerberus-pups (three heads, big teeth, very good boys) - just adapted.
Veterinarians were pleased.
Animal food stores proliferated. A whole new industry of pet fashion became wildly popular. The whole galaxy waited for the humans to self destruct. Didn’t happen.