petmd.com

4krVR TIL that cats can have hypersomnia disorders (narcolepsy, cataplexy) just as humans do. It's harder to diagnose due to cats usual 16-20hrs/day sleep cycle, and it's as rare as in humans, but did you ever see your cat falling asleep in a middle of something?
kJ0Om TIL that dogs intentionally try to make humans laugh. They understand that laughter means play, and play is positive.
dDWxZ TIL cats can't be vegan or vegetarian. They are obligate carnivores, meaning their anatomy and physiology are designed to get the nutrients they need from animal tissues, not from plants.