In the darkness of night, Hylton has captured images of birds like this quizzical collared scops owl, insects like the Atlas moth and snakes like this white-lipped pit viper.
The live adder regarded the assembled group with a sinister look in its small black eye, and the beautiful brown and jet pattern on its back seemed to intensify with indignation.
" We're wary about people going out to hunt the jararacussu around Brazil, thinking they're going to save the world, " said zoologist Giuseppe Puorto with the Butantan Institute in Sao Paulo.
This comes in handy for guarding a nest — unlike most other vipers, the bushmaster lays eggs in hollowed-out tree buttresses or burrows made by other animals.
" And there's only one way to cure it. You must rub the place with the fat of other adders, and the only way to get that is by frying them. That's what they did for him."
They are common around towns and villages, where adult snakes can grow up to four feet long, but away from civilization, these vipers can reach lengths of up to twice that size.
When I work with a cobra or a cobra's striking or I'm judging the distance of a viper like in Costa Rica that giant viper struck at me, it struck more than a meter in length.