mare

but in my experience 95% of my hallucinations are getting spooked by very clearly hearing someone knocking on my door or calling my name from another room or hearing footsteps walking behind me which are "just" my brain recreating the horror of an abusive childhood

(not trying to put you on blast specifically, you're just a good example to jump off of)

media and pop culture hypes up psychosis a lot as The Worst That Can Happen out of sanism, so even when you try and filter that cultural bias out you still assume it's based on something

when, no, psychosis is actually very simple: it's just hyperactive pattern matching. it's your brain's signal-to-noise ratio being off balance, it's seeing images in random static. it's not always this special uniquely big thing, it's in fact quite mundane a lot of the time.

no one is immune to psychosis, it's not purely the realm of the insane. anyone is one bad night of sleep or one bad case of food poisoning or one bad fever away from being just like me on my worst days.

Not a biologist, but the evolution of mammals is way more granular than you might expect. Humans are the sole surviving species of the genus Homo, which was a real party before the other ones went extinct. You're in for a fun time.

Domestic cats are believed to be domesticated not from tigers, but from the African wildcat:

Which evolved to be small just because it's sometimes more useful to be small.

And no, hamsters are not off-brand rats. They're part of the rodent order, which includes beavers, moles, capybaras, guinea pigs (yes, also wild) and lots of other fun things: