Venom from an Amazonian tree frog can cause diarrhea and heart palpitations -- but fans claim that it can cure everything from anxiety to migraines. Getty Images/iStockphoto Silicon Valley ...

Pictures: Cute and Colorful Frog Images. News. By Tanya Lewis published 16 May 2013 When you purchase through links on our site, ... Blue dart poison frogs grow to approximately one inch in length.

Deep in the forests of South America live poison dart frogs that carry around a toxin 200 times more potent than morphine.While it packs a fatal punch for predators, the poison doesn't much affect ...

The image shows a Wolf spider — a large spider with excellent eyesight — devouring a poison dart frog. They capture prey by popping out of their underground burrows and grabbing it as it walk by.

The toxin comes from tiny frogs in Colombia — the ones that pack a punch on the tip of poison darts. In the past, research on toxins like this has led to some pretty amazing drug discoveries.