Poison Frogs
In 2025, the North Carolina Museum of Natural Sciences began a project updating the Tropical Connections Poison Frogs exhibit. This new exhibit includes a live animal enclosure with a colony of Golden Poison Dart Frogs, and highlights the diverse survival strategies seen in poison frog species. I acted as project lead, lead writer, and editor for this exhibit.
Poison Frogs
Wonders of the Wild.
These colorful frogs, also called poison dart frogs, are among the most beautiful—and the most dangerous—inhabitants of the tropics. These frogs are known for their brilliant warning colors and their defensive skin toxins. Poison frogs gain these toxins from bugs in their diets, so only wild frogs are toxic. Frogs born in captivity, like the Golden Poison Dart Frogs you see here, are not.
Golden Poison Dart Frog
These frogs are among the most poisonous animals on our planet. An adult Golden Poison Dart Frog is small enough to fit in the palm of your hand, but it has enough poison in its body to kill two adult elephants. Because of this frog’s potent toxin, the native Emberá and Chocó people of Colombia once used this frog’s poison to coat hunting darts.
Pick Your Poison
The tropic’s most eye-catching amphibians.
Poison frogs come in many colors and patterns. Some species are harmless, but others are too toxic to touch.
Variable Poison Frog
Ranitomeya variabilis
These tiny frogs measure just 18 mm, about the size of an adult thumbnail. Compared to other poison frogs, the Variable Poison Frog is only moderately toxic, but its slimy secretions still teach predators to keep away. Other frogs that live alongside the variable poison frog can mimic its blue and green color pattern, tricking predators into keeping their distance.
Sanguine Poison Frog
Allobates zaparo
These red and blue frogs are not poisonous at all, but they certainly look it. Sanguine Poison Frogs are harmless mimics for toxic frog species that share their environment. Because A. zaparo looks like the toxic species A. bilinguis, predators mistake the harmless frogs for their poisonous cousins, keeping them safe, even without toxic defenses.
Golden Poison Dart Frog
Phyllobates terribilis
The most toxic Poison Frog, the Golden Poison Dart Frog, produces a deadly paralyzing toxin. Like other poison frogs, the golden poison dart frog’s lethal skin is a product of its environment and diet, and frogs raised in captivity are non-toxic.
Rainforest Rocket Frog
Silverstoneia flotator
Not all poison frogs are colorful, or even poisonous. Instead, some survive like the majority of other frog species, by blending in with their surroundings. The Rainforest Rocket Frog is a close cousin to toxic poison dart frogs, but its survival skill is staying hidden from predators in the rainforest leaf litter.
Poisonous Pigments
Why are poison frogs so colorful?
These tiny tropical frogs might look like easy prey, but their bright colors are a signal to be cautious. Poison frogs use their rainbow of color as a warning to any potential predators, “Don’t touch me, I’m toxic!”
Being brightly-colored makes poison frogs more memorable. If an animal like a bird or snake eats an unlucky frog and gets sick, it will remember not to eat similar-looking frogs in the future.
Poison frogs are not born poisonous. Instead, these frogs get their toxins from the tiny animals that make up their diet: ants, beetles, and other arthropods. Poison frogs can convert chemicals from these insects into toxic skin secretions.
Many poison frogs have some level of chemical defense. Most of these frogs are only mildly toxic—enough to be distasteful to predators. Only a few, rare species are poisonous enough to be deadly. Because their colorful skin signals to predators that they are not edible, some other species of frogs protect themselves by mimicking toxic frogs in their environment, making potential predators more likely to keep their distance.
Not all frogs in the poison frog family are poisonous, or even colorful. Many close cousins to poison frogs are cryptic. They don’t need toxins to avoid being eaten—they survive by hiding. Instead of bright warning colors, cryptic frogs rely on camouflage, blending in to stay safe.
Save the Forests for the Frogs
Poison Frogs keep tropical rainforests vibrant and thriving.
Poison frogs have evolved strategies to protect themselves from natural threats. Unfortunately, a poison frog’s bright warning colors and potent skin toxins cannot protect them from human threats. Habitat loss, deforestation, diseases, and the exotic animal trade have all resulted in a more dangerous world for these brilliant amphibians.
Deforestation destroys frogs’ native habitat. As rainforests are destroyed, poison frog habitats are shrinking. Without intervention, frogs and the other incredible animals that thrive in the tropics are in danger of disappearing.
Many countries in Central and South America have created natural sanctuaries to protect tropical plants and wildlife. These sanctuaries themselves won’t save all the frogs, but they’re a big step toward defending these incredible animals and their habitat from human activity. Global efforts are still needed to reduce the impact of human industry, and to reclaim the tropical rainforests for the diverse animals that live there.
