It is certain that now animals that were extinct can be brought back to life
The Mammoth is on of the most famous mammals in history. Its descendants are the elephants walking the Earth today. We are one of the reasons the animal is extinct but we can bring It back.
The steps are to first find mammoth DNA. Then take a. Elephant host and put the DNA inside. It Will grow and create a baby mammoth. It is impossible to bring back the dinosaurs because they were so long ago.