Humans would be the most dangerous because we kill almmost everything. We make tons of animals endangered because of hunting and environment lost.
The hippopotamus is reputed to be extremely dangerous to humans.
the whitetailed deer
I would say the large cats, leopards, cougar, panther, lion, tiger are by far the most dangerous animal group to individual humans. Most dangerous to the human species as a whole is the common rat for the diseases they carry and spread.
Orca, due to its hunting prowess and general aggression, though it presents very little danger to humans
Sharks aren't mammals. They are fish, and no. Lots of other fish are more poisonous. Sharks have the best attack though.
Since "dangerous" is a subjective term, it can mean different things to different people. For example some animals can be deadly to humans in some circumstances but are unlikely to come in contact with a human these days such as a bison or a wolverine. Based on frequency of attack and lethalness, the most dangerous mammal in the U.S. is the Cougar also known as the Mountain Lion. There are many subspecies of this large cat. One of the most endangered is the Florida Panther whose population hit an all time low in the 1980s at 20 individuals.
The cheetah is the fastest mammal.
There is no such thing (in English) as a "mammle." There is, of course, a mammal. The deadliest mammal is arguably the hippopotamus, not the African lion, not the Bengal tiger, not the orka ("killer whale.") You may get an argument about that from a seal or a gnu, but the published opinion of experts in the field is that the hippo is the most dangerous.
Nothing is the most safe mammal. Rabbits do no harm, it may be the safest.
i ment like the most evil mammal in greece at the point in time
No. The most endangered mammal in Australia is Gilbert's potoroo.
a bear