An interesting video has emerged of a baby Praying Mantis eating a fruit fly while it's still alive.

The footage, filmed in Parkersburg, PA, US, shows the Mantis consuming its prey.

''A batch of baby mantises came in with my Christmas tree so I put them in a little terrarium with a bunch of fruit flies to feed them,'' the filmer later wrote online.

Music: Volatile Reaction by Kevin Macleod