Fennec Foxes / Milwaukee County Zoo

Meet Lulu and Roscoe, the Milwaukee County Zoo’s newest Fennec Fox kits. Born 27 January, the cubs recently made their public début accompanied by mum, Daisy, and father, Duke. Fennec foxes’ oversized ears act like natural air conditioners, radiating heat away from their bodies and cooling their blood in the light desert breeze. Their ears also help detect tasty prey at night, including small insects scurrying nearly-silently atop the sand — via ZooBorns