"Most" is pretty hard, so I'll just pick one I think is good. I'm paraphrasing here, so errors are mine.
Sea otters, which feed themselves through long dives to and from the ocean floor, with a blind and hurried pawing for urchins in the middle, have hands that are about as sensitive as human hands, but significantly faster. Tasked with distinguishing boards with slightly different small ridges, humans compare and re-compare before deciding; if an otter touches the correct board first, it doesn’t touch the second one at all. This is true even though a human fingertip, if inflated to the size of the earth, is sensitive enough to distinguish between cars and houses. A manatee’s face is about as good.
Sea otters, which feed themselves through long dives to and from the ocean floor, with a blind and hurried pawing for urchins in the middle, have hands that are about as sensitive as human hands, but significantly faster. Tasked with distinguishing boards with slightly different small ridges, humans compare and re-compare before deciding; if an otter touches the correct board first, it doesn’t touch the second one at all. This is true even though a human fingertip, if inflated to the size of the earth, is sensitive enough to distinguish between cars and houses. A manatee’s face is about as good.