![A close-up picture of a mutant frog with blue skin and an olive-green poison gland on its head recently spotted in northern Australia.](https://cdn.mos.cms.futurecdn.net/gmzXHkxxLcLh88x6qy2okQ-320-80.jpg)
'Lovely freak of nature': Mutant blue frog hops into wildlife sanctuary workshop
Researchers in Australia spotted a magnificent tree frog with blue skin — the result of a rare genetic mutation called axanthism, which suppresses yellow pigments that usually tint the frogs green.