Wolves, beavers and bats are better at monogamy than we are.
Only 3 to 5 percent of the roughly 5,000 species of mammals (including humans) form lifelong, monogamous bonds.
Daniel Kruger, a social and evolutionary psychologist at the University of Michigan’s School of Public Health said, “We’re special in this regard, but at the same time like most mammals, we are a polygynous species.”
