This meme brilliantly captures the evolutionary concept of "island tameness" - where isolated island species lose their fear of predators due to evolving without them. The top panel shows a terrifying predator approaching two SpongeBobs, while the bottom panel reveals their contrasting reactions: the "Island Animals" SpongeBob remains chill and unbothered (probably thinking "what's the big deal?"), while the "Continent Animals" SpongeBob freaks out appropriately. Darwin first noticed this phenomenon in the Galápagos, where animals would literally let him pick them up. It's basically evolution saying "no predators? cool, I'll just delete that fear response to save energy" and then when predators finally show up... well, dodo birds happen.