Pristimantis mutabilis - shape-shifting frog from Ecuador

Scientists discovered a new frog species in Reserva Las Gralarias, Ecuador. Pristimantis mutabilis, or mutable rainfrog, has the ability to change skin texture in minutes.

Credit:
Guayasamin, J. M., Krynak, T., Krynak, K., Culebras, J. and Hutter, C. R. (2015),
Phenotypic plasticity raises questions for taxonomically important traits: a remarkable new Andean rainfrog (Pristimantis) with the ability to change skin texture.
Zoological Journal of the Linnean Society, 173: 913–928. doi: 10.1111/zoj.12222