The blue-tongued skink, also known as a blue-tongued lizard, is already fascinating due to its colourful gob, but researchers have discovered its secret power.
Ordinarily when threatened, the lizard uses its tongue as a warning to predators.
But it’s the final throes of the skink’s defence that has excited researchers: As a last-ditch attempt, it shows the back of its tongue, which is more UV-intense and luminous compared to the front.
That could be a useful defence against its main predators, such as birds, snakes, and monitor lizards, who are thought to have UV vision. Read more…