Since piranha are not native to the US, no. But caiman, a close relative of the gator shares habitat in the Amazon with this fish, and they do eat them.
Crocodiles attack people when they come down to the river to wash clothes or to swim. Alligators do not live in Africa.
When they are hungry, yes.
The alligator will attack humans, but not on a regular basis.
Yes
Most probably...
Thunderbirds - 1965 Attack of the Alligators 1-23 is rated/received certificates of: Australia:G UK:U USA:TV-G
Alligators have large mouths, are very fast, and are unpredictable. Humans fear the unknown.
Alligators aren't particularly nice. Being alligators they have no feelings about humans except when the opportunity arises, they will attack and eat humans. Alligators are predators and don't indulge in emotions.
Crocodiles have been known to kill lions, and sometimes the lion gets away, or kills the crocodile. Alligators do not live in Africa.
One can protect against an alligator attack by taking the right precautions. Before going into water in an area where alligators live, do a careful visual check for any alligators.
momma said alligators are so angry because they got all dem teeth but no toothbrush.LOL!! "well momma's wrong", alligators are aggressive because of an enlarged medulla oblongata. ('WATERBOY' quote, very funny.)
If hungry yes but they mostly eat other fish. It really depends on the condition.