And why they are the way they are:
http://m.huffpost.com/us/entry/3675733?n...lp00000009
Interesting article.
"Strict monogamy, such as (with) the gibbons, is not what humans do."
http://m.huffpost.com/us/entry/3675733?n...lp00000009
Interesting article.
"Strict monogamy, such as (with) the gibbons, is not what humans do."