Yes, Also that is why I think that they have a part of the species named the poison dart frog

Amphibia-Dendrobatidae

There are a huge number of species of poison dart frogs. They are all different colours, but most of them are extremely brightly coloured. Bright colours on animals in nature are often called 'warning colours'. Their bright shades of red, green, yellow, purple and blue, often iridescent and spotted or striped, clearly say 'don't eat me, I'm poisonous'.

It's supposed to be the Phylobates Terribilis. However, the name Poison Dart frog is a common term for the Poison Frogs, the Dendrobatidae family of frogs. The family is split into four genera: Epipedobates, Colostethus, Dendrobataes, and Phyllobates. A question that is raised is how the frogs produce this toxicity and research points towards the frog's diet of highly toxic insects to be an important factor in the frog's ability to synthesize its own poison. See site listed below for more details.