According to recent research, the animal that kills the largest amount of people is the Theraphosa Blondi. The Theraphosa Blondi is a ten-inch long spider, that attacks whatever it sees that moves. I wouldn't want to run into one of those in a dark alley!
Humans are the mammal that has killed the most humans. trillions of humans were killed in wars over the ages so ya humans are the mammal to kill the most humans.
People have killed the most people in the world.
The answer is humans. We humans, as we are mammals as well, kill the most humans in wars and such.
human
mosquito
Deer
A manatee.
Dogs and cats are the most common mammal pets.
The 30.cal machine gun.
I would guess rats are the most common mammal in the world.
According to wikipedia it was World War 2 with 70 million people killed, most of whom were civilians. http://en.wikipedia.org/wiki/World_War_II
I would guess rats are the most common mammal in the world.
Well, technically speaking, Nazi Germany did by far since they killed so many Jewish people.
The Spanish Influenza of 1918-1920.
Although it is now eradicated I believe it was smallpox.
Ciudad Juarez, Mexico is dangerous. About 85 people a day are killed.
I would dare to say the most common mammal would be the brown rat (Rattus norvegicus), and not only in Mexico but also in the world.