The yellow-spotted tree frog is also known as the yellow-spotted bell frog, the New England swamp frog or the tablelands bell frog. It’s listed on the Red List of the International Union for ...

The yellow-spotted tree frog is also known as the yellow-spotted bell frog, the New England swamp frog or the tablelands bell frog. It’s listed on the Red List of the International Union for ...

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.

The bright blue hue comes not through choice but a super-rare genetic mutation, which blocks that yellow pigmentation. For a tree frog that grows up to 12 cm (5 in), camouflage is crucial to avoid ...

Normally, green-colored frogs have both blue and yellow skin pigments, which combine to make “green”. Axanthism prevents the production of yellow pigments, allowing only blue to come through.