A lot! Obviously they are both fish, but sharks are members of the class Chondrichthyes (or cartilaginous fish) and piranhas belong to Osteichthyes (bony fish), along with the majority of fish species. They are taxonomically separated after phylum, so pretty early on in the system. There are more physical differences, such as the fact that most sharks are salt water and piranhas live in fresh water, but that is the biggest difference.
Depending on the species of shark and the number of piranhas, supposedly piranhas could be more dangerous. What makes piranhas so dangerous is the fact that they swim in schools of 100 strong. Even so, both animals are misunderstood because of movies like Jaws and Piranhas. Both animals should be treated with respect.
Piranha
From smallest to biggest: Herring Piranha Salmon Shark
piranha they eat you in seconds
A shark can kill both. A piranha may be fast and have lots of teeth, but so does a shark. And many sharks are cannibals, meaning they will eat their own kind.
The Zambizi sharkDefinetly the Bull shark, the tiger shark and the great white.
they would if they got the chance
A tasty meal.
mega piranha, because piranhas have deadlier teeth then sharks have.
The Great white Shark is a consumer and is a top carnivore. No animal can prey on it except decomposers when the shark dies.
A giant piranha, a bull shark, a crocodile, an alligator, a big lobster, and a big crab.
like a piranha or a shark? it all depends on the size and type
1.Great white shark 2.Tiger 3.Spider 4.Snake 5.Lion 6.Tiger shark 7.Bull shark 8.Tiger shark 9.Crab 10.Piranha