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.
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.