One thing most people do not realize is that an animal can also suffer from mental illness so to speak, making it a killing machine. Just killing for killings sake. I think thats what happens even in some dog attacks. Again rabies could be an explanation.
Bear Mauls and Kills Infant in New York State
A bear killed an infant Monday afternoon as it tried to drag the girl into the woods, officials said.
The baby, Ester Schwimmer of Brooklyn, was snatched out of her stroller by the bear at the bungalow colony, police said.
Fallsburg is about 70 miles northwest of New York City.
Isaac Abraham, a community leader from Williamsburg in Brooklyn, said witnesses told him the 5-month-old girl was pronounced dead at a nearby hospital upon arrival.
The baby was in a stroller in front of the porch with members of her family, said Mike Fraser, a state Department of Environmental Conservation spokesman.
The bear grabbed the stroller and the child, Fraser said. The child was knocked out of the stroller and the bear tried to drag her into the woods, Fraser said.
http://www.maineguides.org/referendum/bear_attacks01.shtml