Here is a list of the 10 most lethal animals on land or in water. Some of them may not seem very dangerous at first glance - especially number 1 - but they are responsible for millions of deaths every year. The following list starts with the least common animal and ends with the worst:
10. Poison Dart Frog
The back of a poison dart frog secretes a sticky neurotoxin that keeps predators at bay. Each frog can produce enough toxin to kill 10 people, but strangely, even when bred in captivity, poison dart frogs do not lose their toxicity. These brightly colored frogs mainly live in Central and South America. [Wikipedia article]
9. African Buffalo
The African buffalo weighs 1.5 tons. When threatened, it uses its head, which is armed with razor-like horns...