Ah, Valentine's Day! A celebration of love and the heart.
A paper-and-lace heart is romantic. A box of chocolates is heart-melting. A heart-shaped necklace is a token of true love.
Our soulmates can make our human hearts pump a little faster.
But what about all the other hearts in the wildlife kingdom?
In honor of Valentine's Day, here are some fun facts about the hearts of our furry, and not-so-furry, friends, courtesy of the National Wildlife Federation: http://blog.nwf.org/wildlifepromise/2011/02/valentine’s-day-some-animals-really-have-heart/