It's possible but extremely unlikely to Revive an extinct animal but It is possible to create an organism similar to whatever extinct animal that is in question using its dna or the dna of its relatives. If scientists did revive extinct populations it could have an extremely detrimental effect on humans and our environment.
Answer:Peasants were unhappy with the depletion of royal coffers, two decades of poor harvests, drought, cattle disease and skyrocketing bread prices. Peasants had heavy taxes imposed on them while the Catholic Church was got off scot-free.