Poison dart frogs have fascinated researchers. Now their toxin has allegedly been linked to the death of Russian opposition leader Alexei Navalny.

Blue poison dart frog (Dendrobates azureus). The blue poison dart frog is a colorful frog found in the rainforests of Suriname, a country located in the northeastern part of South America. The blue ...

A team of wildlife researchers from Instituto Nacional de Pesquisas da Amazônia, in Brazil, working with a colleague from the National Museum of the Czech Republic, has discovered a new species of ...

A new species of poison dart frog has been discovered in the heart of the Brazilian Amazon, where dense rainforests host some of the most diverse and complex ecosystems on Earth. In a study published ...

Vibrant frogs, often seen in nature documentaries, use their striking colours as a survival tactic. From the Red-Eyed Tree Frog's startling gaze to the Golden Poison Frog's potent warning, these ...

A strawberry poison dart frog in Costa Rica. (Michelle Thompson, Chicago Field Museum) Strawberry poison frogs, also known as “blue jeans frogs,” are smaller than a quarter, with bright red bodies and ...