Angler Fish {Lophius piscatorius) are ambush predators and depend on blending in with their background and remaining absolutely motionless so as not to alarm passing fish. Here one shows how it is done.
I have seen them many times and the one thing that often gives them away, is their brilliantly coloured eye swivelling round to observe me as I approach - see next photograph for an eyeball shot.
Also known as Monk Fish

Angler Fish {Lophius piscatorius) are ambush predators and depend on blending in with their background and remaining absolutely motionless so as not to alarm passing fish. Here one shows how it is done.
I have seen them many times and the one thing that often gives them away, is their brilliantly coloured eye swivelling round to observe me as I approach - see next photograph for an eyeball shot.
Also known as Monk Fish