Why? Because the transcript reminds you of the subtext. Manny lost his own wife and child to human hunters. By returning that baby, he is letting go of the phantom of his own family. Reading those flat, black-and-white words hits differently than the cartoon animation.
Because these transcripts are fan-made or algorithmically generated, quality varies wildly. You will encounter three types of Ice Age 1 transcript files online: ice age 1 transcript
You can hear the pun in your head. You can see Sid’s buck teeth. But have you ever actually read the words? ice age 1 transcript