If you have seen the 2010 movie Piranha directed by Roger Corman you will realise how vicious and dead these little critters can be. Whilst the movie is a parody, piranha are in fact deadly and can strip the skin away from an animal in seconds leaving just bones behind.
These toothy critters swim in shoals and have sharp teeth that are capable of tearing chunks of flesh away before you can yell ‘ouch!’ They swim in formation and take it in turns to take a big bite so reduce their prey to nothing very quickly. Tip of the day – don’t trying swimming with piranhas or try to make friends with them! It’s not going to end well!