Piranhas are fish that live in the Amazon River and lakes in South America, known for their razor-sharp teeth and fierce attacks on other kinds of fish. But are they really as aggressive as they ...

Hollywood has rather overstated the reputation of today's piranhas Scientists have unearthed the fossilised remains of a piranha-like species that they say is the earliest known example of a flesh ...

However, some species of piranha prefer feasting on fallen fruits rather than flesh. This is the case for the recently discovered Myloplus sauron – one of two new piranhas discovered by researchers.

Now, a new study published in Evolution & Development reveals that the teeth of various piranha species are even more unique than scientists first realized. The fish, it seems, are basically tiny ...