Poison-dart frog (Oophaga pumilio) variation "la gruta" from the island Colón, which is part of the archipelago Bocas Del Toro on the east coast of Panama. The size of the frog is about 2 cm. Its flamboyant coloration warns about its toxicity which is released as an alkaloid through their skin. The frogs feed on small insects and significant part of their diet are ants. The substances in the ant's venom are used by the frogs in the production of their defensive toxic secretion.