This is amazing footage, the sharks really seem to enjoy it, and even the diver is amazed when sharks come up to him wanting to do Tonic Immobility
Tonic immobility, also known as animal hypnosis, is a natural state of paralysis that some animal species enter by different stimulations and reasons.
It has been observed in some elasmobranches in natural state and it can be induced by humans in two different ways. The first one is by turning the
animal upside down (it can remain in this state for up to 15 minutes). The other way is by "stroking" their nose using the fingers with a very
particular technique.
Anyway I have seen this footage a few years ago and some one sent it too me recently, I thought others on here may enjoy it too