The pterodactyl screech is a stock dinosaur cry that has floated around meme soundboards and editing apps for years, usually ripped from cartoon or B-movie style effects libraries rather than any single film. Short creature shrieks like this one caught on because they work as universal punctuation: danger, surprise or something incoming. Uploaded under the creator name NONO, this particular cut trims the cry to about a second and a half, which is the sweet spot for reaction edits and jumpscare memes that need a hit-and-run sound.