Green-and-Black Poison Dart Frog (Dendrobates auratus)

OTHER NAMES: Green-and-black Poison Arrow Frog, Green Poison Dart Frog, Green Poison Frog
Latin Etymology: Dendrobates ("tree climber") auratus ("gilded")

Adult Green and Black Poison Dart Frog (Dendrobates auratus) at Carara, Costa Rica - November 2025

Featured Subspecies: N/A

Weight: 3-10 grams  /  Length: 1.9-2.5cm

NO UK STATUS / IUCN Red List: Least Concern

As a member of the famous poison dart frog family, this species is indeed intensely poisonous, however, this actually comes from their diet of ants and mites which the frogs metabolise into a complex set of alkaloid poisons which can cause many side effects including numbness, loss of motor control, cardiac arrest or death to a creature foolish enough to consume one.  Despite the name, it is extremely colour variable and some populations lack green, black or in one case, eiter for different colour combinations.
 
Related Species: 
Order: Anura
Family: Dendrobatidae
Genus: Dendrobates
SUBSPECIES: none - monotypic 
 
- Sighting Locations -

COSTA RICA 
A fairly widespread species of coast
- COSTA RICA 2025 TRIP: Seen at Carara National Park

Further Notes: BirdForum Opus, IUCN Red List, RSPB, Wikipedia, Xeno-canto