1 Golden Poison FrogNative to Colombia’s Pacific coast, Golden Poison Frog is the the most life-threatening frog on the planet. Its skin has batrachotoxin poison that is enough to kill 10 to 20 people, or two African bull elephants. Its size is about 2.5 cm or 1-inch long, and lives for as long as 10 years.
2 Black-legged Dart FrogBlack-legged Dart Frog also known as 'bicolored dart frog' is the second most poisonous frog in the world. This species belongs to Phyllobates class that carries the most toxic chemical that could kill adults. Black-legged Dart Frogs can be found in Chocó area in western Colombia, along the San Juan River, and it grows up to 4.75-5.5 cm.