Frog harem: lucky males stay loyal [feedly]

Frog harem: lucky males stay loyal
http://feedproxy.google.com/~r/zmescience/~3/pdB3vhv8IG0/

Polygamy is generally associated with an earlier stage of evolution, while monogamy, which emerges when the young of a species require intense parental investment, is typically considered to come later in evolution.

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