Yes Jello is still made from bones of animals.
The Jello gelatin is made from boiling the bones of animals hides.
The result of boiling the animal hides bones results in the gelatin because of the collegan in the bones that is extracted when the bones are boiled.
The gelatin Jello is basically just protein that comes from the cows bones.
So all this time when we've been eating Gelatin Or Jello we have been eating the protein extracted from bones of animals.
The Gelatin and Jello is extracted from both pigs and cows bones.