Within a Sky Full of Earth

What's the most dangerous animal that has ever lived?

Half the human beings who have ever died, perhaps as many as 45 billion people, have been killed by female mosquitoes (the males only bite plants).
Mosquitoes carry more than a hundred potentially fatal diseases including malaria, yellow fever, dengue fever, encephalitis, filariasis and elephantiasis. Even today, they kill one person every twelve seconds.

This information and many others are available on The Book of General Ignorance. It can be found at Bloom. It's a hardcover with 290 pages that will cost you 215 patacas. Come and get one. Over 500,000 copies were sold around the world, 1 for every 90 thousand people that died of a mosquito bite.