They're questions oft-typed into google: 'can a plant eat a human?' and 'how do carnivorous plants work?' The answer to the former is 'not as far as we know,' but the latter is a little more complicated.
This variety has been a favourite of ours for a while, and we've always used the common name 'Wandering Jew.' We always thought the name referred to the Israelites ‘wandering’ through the desert for 40 years, but further research revealed that not be the case.