Insidious golden poison frog
When people hear about deadly animals, they start thinking of huge animals with scary craws. Well, the first animal on this list also happens to be among the most attractive and the smallest animals. Most people who have seen this frog think that it is cute. But don’t let the attractive tiny creature fool you. This is the most poisonous vertebrate on earth. It secretes very deadly toxins through its skin. In case you touch it, the poison is absorbed into the body and quickly travels through the bloodstream to the central nervous system. It attacks the nervous system thus causing terminal paralysis. It finally shuts down the vagus nerve which causes heart failure immediately.