Odobenocetops, aka Walrus-Face Whale
Even though Mother Nature usually fusses with the attributes of each type of animal separately, she isn't above mashing two totally different species together just to see what happens. Sometimes the outcome is amazing, combining all the best characteristics of both, and other times the final product is Odobenocetops, aka the failed mix tape of the ocean.
During the Pliocene period about 3.5 million years ago, Odobenocetops was essentially a whale with the head of a walrus, except one tusk was much longer than the other and its face was locked in a perpetual Eeyore sulk. The longer tusk could grow to be about 3 feet long, but it was completely useless for defending Odobenocetops against predators because it was too brittle. In fact, no one really knows why it had such ridiculously mismatched and ineffectual fangs.
"I may look retarded, but I get better reception than your cellphone."