This year saw a number of weird animal discoveries, including a meat-eating sponge and a fish with a penis on its head.
Researchers working in New Guinea reported finding what may be the world's tiniest vertebrate. Averaging less than one-third of an inch in length, the frogs are able to fit on a U.S. dime.
This year saw a "poaching epidemic" soar, as rhinos continued to be killed in astonishing numbers, according to the Associated Press. Over 633 were killed in South Africa alone.
Which animal stories do you remember from the past year? Check out the photos below and vote for your favorite animal pictures of 2012.