Fishing Bridge, Yellowstone (mile 78). Fishing Bridge offers all the facilities you need to prepare for your time in Yellowstone National Park, including general store and gas station plus the historic Fishing Bridge Museum and Visitor Center.
Jawbone of Pygocentrus nattereri. Piranhas are normally about 14 to 26 cm (5.5 to 10.2 in) long, although some specimens have been reported to be up to 43 cm (17 in) in length. Serrasalmus, Pristobrycon, Pygocentrus, and Pygopristis are most easily recognized by their unique dentition.
After that, a Red Bellied Piranha's growth slows down to about 1 per year (and even less once they hit the 9-10 marker) and reach sexual maturity when then are between 18 and 24 months old, once again depending on the factors mentioned above. The older the fish, the darker it will get.