How did the First Punic War differ from the Second Punic War?

Carthaginians started the first war and Rome started the second war.
Carthage had to pay a massive tribute when losing the first war, but she was utterly destroyed in the second war.
Rome reaped a bounty of roads, resources and slaves after the first war, but lost the second war because of a failed campaign by Hannibal.
Rome started the first war because she felt that Carthage's ownership of Sicily was too big of a threat. They started the second war out of pure greed.

Carthaginians started the first war, and Rome started the second war.

Explanation:

The vast fields of grain abounding in Sicily and other natural resources were the desire of the Romans. In one part of Sicily, the Greeks lived, and the other had Carthage. The Romans wanted such fertile and rich territories for themselves. The occasion of the war was Carthage's occupation of Messana (Sicilian city) to control the passage. When the Romans expelled them, the Carthaginians declared war. 260.g.pr. The Carthaginians were defeated at Cape Ekonom. It was one of the greatest naval battles in antiquity.The Second Punic War began in Rome. The occasion was Hannibal's conquest and destruction of the Iberian city of Saguntum in 219 BC, which was one of the Roman Allied cities. This act led to the declaration of war on the Roman side, which occurred in the spring of 218 BC.