The green black poison dart frog is also known as the green-and-black poison arrow frog and with numerous other names. It is found mostly in Central America and northwestern parts of South America and has also been introduced to Hawaii. It is considered to be of least concern from a conservation standpoint by the International Union for Conservation of Nature. It is one of the most variable of all poison frogs in appearance. Some have black or brown splotches, others are dappled, or have “splashes” of black. Its very small amount of poison is enough to make a human heart stop beating.