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Dyeing Poison Dart Frog
Photograph by George Grall
Poison dart frogs, members of the Dendrobatidae family, wear some of the most brilliant and beautiful colors on Earth. Depending on individual habitats, which extend from the tropical forests of Costa Rica to Brazil, their coloring can be yellow, gold, copper, red, green, blue, or black. Their elaborate designs and hues are deliberately ostentatious to ward off potential predators, a tactic called aposematic coloration.
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Blue Poison Dart Frog
Photograph by George Grall
Poison dart frogs, like this sapphire-blue species, are highly toxic. Their brilliant colors broadcast a warning to potential predators: Keep away.
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Strawberry Poison Dart Frog
Photograph by George Grall
Strawberry poison dart frogs are less venomous to humans than other poison dart frogs, but their toxins will cause swelling and a burning sensation.
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Golden Poison Dart Frog
Photograph by George Grall
The golden poison dart frog is among the most venomous of this colorful frog species.
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Blue Poison Dart Frogs
Photograph by George Grall
Blue poison dart frogs lack toe webbing and are poor swimmers, so they are never found in the water.
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Golden Poison Arrow Frogs
Considered to be one of the most toxic animals on Earth, golden poison dart frogs have enough venom to kill ten grown humans.
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The Beauty of Insect Eggs
Engineered for survival, insect eggs hang on and hatch wherever their parents deposit them.
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Eels Photo Gallery
The freshwater eel is one of the few fishes to spawn in the ocean and spend its adulthood in lakes, rivers, and estuaries.
