Brady Barr has studied all 23 species of crocodilians but decided that he needed to get a closer look at the Nile crocodile, so he made a disguise and crawled right in.
When Dr Brady Barr decided to dress up as a crocodile, the disguise needed to be good.
Otherwise he was in grave danger of being eaten by the real thing.
The zoologist adopted his bizarre outfit in the hope of getting closer to a colony of Nile crocodiles, which can grow up to 20ft.
His disguise was a prosthetic head attached to the front of a protective metal cage covered with canvas and a generous plastering of hippo dung to mask his human scent.