Whale sharks have mouths up to 1.5 metres wide that contain up to 350 rows of teeth. Despite their size, they do not pose a risk to divers. Each year they converge in water off Mexico where they filter feed by sieving plankton from the water. They swim with their huge mouth open sucking masses of water filled with spawn into its jaws.
Jaws: This diver almost got sucked into the mouth of a massive whale shark as it fed on plankton
BFGs: Whalesharks, the sea’s largest fish, are actually very docile
Open wide: Whale sharks have mouths up to 1.5 metres wide that contain up to 350 rows of teeth
Majestic: These photographs were taken during a feeding frenzy where more than 600 of the 40ft animals gathered to feed on tuna spawn