The two species with the most well-known and documented reputation for preying on humans are the Nile crocodile and saltwater crocodile. Each year, hundreds of deadly attacks are attributed to the Nile crocodile in sub-Saharan Africa. In New Guinea, Borneo and the Solomon Islands attacks by saltwater crocodiles often occur. The mugger crocodile is also very dangerous to humans, killing many people in India every year. The American crocodile is considered to be less aggressive. Only a few (unverified) cases of American crocodiles fatally attacking humans have been reported.[1] The black caiman is also responsible for several recorded human fatalities every year within the Amazon basin and the surrounding regions. The American alligator is responsible for human fatalities, with most occurring in Florida.....More Info:Crocodile attack
The study of human evolution involves many scientific disciplines, including physical anthropology, primatology, archaeology, paleontology, ethology, linguistics, evolutionary psychology, embryology and genetics...Full Story
