For instance, hearing and smell are dramatically stronger than people's, and they may have additional sensory abilities. (catsforyou.com)
Their sense of smell is their most highly refined sensory ability and they use scent as their major means of communication. (acsedu.com)
It is well known that bats and toothed whales use echolocation for foraging, but the use of reflected echoes for orientation has not previously been confirmed in other mammals, though many have advanced nonvisual sensory abilities. (science.sciencemag.org)