Pic By Ingo Gerlach/Caters News

A hippo raises its head from the lake, vegetation clinging to his forehead. These hippo looks to be trying a healthy diet - as they swim in a pool full of salad.

Pic By Ingo Gerlach/Caters News

Vegetation momentarily blinds a hippo, covering his eyes. The sleepy hippos also attract local birds which come to rest on them, but fly away quickly in a panic as soon as the giants start to threaten each other with their teeth.

Pic By Ingo Gerlach/Caters News

This is the moment an enormous hippo popped up to smile for the camera - after lurking under a sea of water cabbages.

Pic By Ingo Gerlach/Caters News -

The hippo throws his head bacl scaring away a hitchhiking bird. German photographer Ingo Gerlach was at Governors Camp, a world-famous spot for tourists on the Mara River in Kenya, to capture the scene.