Poisonous AnimalsPoison Dart Frog
Origin• Dendrobatidae family
Name origin• Origin of it’s name: used as weapon
Blue Poison Dart Frog• Dendrobates azureus• Few Rain forest island of Southern Suriname
Characteristics• Daily active• Brilliant color, complex patterns• Many are deadly poisonous
Can ClimbPoor swimmer
Characteristics• Size : 1 - 7cm• Weight : few grams• Life time : 3 - 15 years
Its poison• Most poisonous animal in the world• 0.2 µg to kill 1 person• Golden Dart Frog has 200 µg
Poison’s use• Natural defense against predator
Alkaloids• Complex nitrogenous compounds• 24 structural classes known in dart frog
Batrachotoxin• Neurotoxins, a potent nerve poison
Predators• Amazon ground snake
Dietary Hypothesis• Sequester arthropod prey’s toxins
Plant-Insect-Frog toxin food chain• Commun Alkaloids toxins
Alkaloid sequestration• Poison glands
Species with Similar Venom• Hooded Pitohui