In season 3 episode 3 a dog runs away from his owner but is fine. In season 4 episode 6 a puppy runs off but is ultimately only mildly injured and gets home safely. I checked here to find out if the dogs died because it’s been a while since I watched the series. Some troll(s) have responded “yes.” Those people suck.
An autistic child regularly has therapy sessions with a behavioral aide and ABA principles/ strategies are discussed by her, the child, and various other characters (i.e. socializing in ways expected of him in exchange for stickers, once he has enough stickers he gets rewarded).
Fish in Max’s classroom are killed offscreen. Spoilers: it is assumed Max knocks it over or breaks the tank. His mom asks “did any make it?” And his dad says no. So yes animals do die.
Season 2 episode 11 titled “Damage Control” has a plot line about a wild bird that gets injured and then dies in captivity. This is one of the main themes of the episode and is brought up repeatedly.
Every single kissing scene is extremely loud, to the point that I almost turned it off.
If you are sensitive to those sounds, be prepared to mute often.