Alright, so here's how this is gonna work:

In life-or-death scenarios, animals will be sympathized with depending on their nature and that of their opponent. All animal groups are given a ranking based partially on intelligence, and partially on how much humans just like them. Lowest to highest, here you go:

• Bacteria & Fungi
• Invertebretes (and Mean Fish, e.g. sharks & anglerfish)
• Plants (I know they're not animals STFU) & Cute Fish
• Reptiles (except turtles [not snapping turtles] and tortoises)
• Birds
• Mammals (except vermin, and sometimes humans... depending on the context)

Any animal caught killing and consuming a creature of a higher order than itself will be the subject of lots of sad looks. So, a bird eating a spider? Not a problem. Spider eating bird? NOPE. Wolf eating hawk? Sure, why not. Golden eagle eating wolf? Holy shit, that's just not right! Spiders eating insects? I couldn't care less either way. Plants eating mammals? FUCK!

Exceptions will exist and will be largely arbitrary. Snakes eating mice makes some people sad, but there are lots of mice in the world and snakes are pretty. Snakes eating people? ...Possibly also okay too, actually, especially if the person was a poacher hunting elephants for the ivory in Darkest Africa, and was about to knock the hero into a pit of bloodthirsty lions.

Keep in mind that the larger the separation between the predator and the prey, the more indignant one is justified in becoming.

And now that we know exactly to what degree we should be upset when we see pictures like this... Let the butthurt at the coldness and indifference of nature begin.