No, barracuda are not in the piranha family. Barracuda belong to the family Sphyraenidae, while piranhas are part of the family Serrasalmidae. Both species are carnivorous fish, but they belong to different taxonomic groups and have different habitats and behaviors. Barracuda are typically found in warmer waters, whereas piranhas are mostly found in freshwater environments in South America.
Which is more dangerous barracuda or piranha
The scientific name for the piranha family is Characida.
No
Family - Sphyraenidae
It is hard to say, but some contenders are:, Barracuda, beta fish, piranha, peacock bass, smallmouth bass, muskellunge, northern pike.
Actually yes they are, they are both members of the Scombridae family.
Tetra
I'm not sure if I am understanding your question correctly, but if I understand correctly I believe the barracuda in Finding Nemo was the fish which killed Marlin's wife, Coral, and the eggs at the beginning of the movie. I hope that answers your question.
were can you find a diagram of a great barracuda
There have been five movies with piranha in the title: Piranha (1972), Piranha (1978), Piranha Part Two: The Spawning (1981), Piranha (1995) TV, and Piranha (2010)
Sphyraena Barracuda
Piranha Order: Cypriniformes Family: Characidae Genus and Species: Serrasalmus nattereri