What is coral bleaching and how it happens?
This article was originally posted at Amazing Zoology. View original article at http://amzoo.in/4js5e
What makes poison dart frog resistant to their on poison?
This article was originally posted at Amazing Zoology . View original article at http://amzoo.in/sksq7 © Brian Gratwicke | CC BY 2.0 Contents 1 Poison Dart Frog 2 How is the toxin produced? 3 Physiology of the toxin 4 Why doesn’t the toxin affect the frog itself? 5 References Poison Dart Frog Golden poison frog ( Phyllobates terribilis ) is one of the deadliest poisonous animals in the world. These animals are endemic to the Pacific coast of Colombia. An average one milligram of poison available in one frog is enough to kill 10-20 humans [1] . Indigenous people carefully expose the frog to the heat of a fire, and the frog exudes small amounts of poisonous fluid. The tips of arrows and darts are soaked in the fluid. Their deadly effect kept for over two years [2] . The interesting question is, what makes the frog itself resistant to this deadly poison! How is the toxin produced? These animals store Batrachotoxin, a steroidal alkaloid toxin in their skin glands. This toxin is not ac
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