Doraemon: Nobita no Kyouryuu (2006)

Synopsis

Nobita finds a dinosaur egg by complete accident. Using Doraemon's various gadgets, the group manages to hatch the egg and care for the creature as it grows. The situation becomes urgent when they realize time-traveling poachers are hunting the dinosaur for profit. To ensure its survival, Nobita and his friends must travel back to the prehistoric era. Their goal is to return the dinosaur to its original time and protect it from these dangerous hunters before it is captured forever.