Mainly because they can kill you. However they could also theoreticall pollute water systems with excrements.
Yes, Alligators are more friendly to Humans than Crocodiles.
alligator or crocodiles?
Dangerous Encounters - 2005 Man-Eating Crocodiles was released on: USA: 25 January 2011
No. They're usually not, but sometimes there are water snakes or crocodiles and alligators which can be very dangerous.
yes there are, very dangerous ones..
Whether or not a crocodile is dangerous depends on the particular crocodile. The most dangerous crocodiles are those of Northern Australia and the Nile River. They have killed many people. Other crocodiles and American Alligators are not quite as dangerous without the overt aggressiveness but still have killed a number of people.
There were many dangers of the Nile, hippos and crocodiles which are very dangerous.
Casowarys,brown snakes, and estuariane crocodiles.
Tigers, jaguars, anacondas and crocodiles can all be dangerous to tapirs
Yes. There are a lot of nile crocodiles and even hippos inside!
There are around 800 American crocodiles in the swamps of south Florida along the mangrove coast.
Very dangerous. They can bite you in half, Also the deadliest predator alive today!!!I agree with this Guy.!!!I think that crocodiles look a bit like Dolphins!!!