And . . . BAM!
Golden Poison Arrow Frog!!
To the Indian tribes these little frogs are most useful. They catch them and put them close to a fire. As soon as the frogs start to become hot they exude a kind of slime from their bodies, which the Indians scrape off and collect. This slime prepared in special way, is a most potent poison, and the Indians use it to dip the tips of their arrows in. Thus, when the arrow strikes an animal - even a quite powerful one, like a wild pig - the poison works very rapidly and kills the beast.
Let's see a penguin do THAT.