How seals' whiskers make them master underwater hunters
harbor seals use their whiskers to hunt.](https://npr.brightspotcdn.com/dims3/default/strip/false/crop/3199x2134+0+0/resize/1100/quality/50/format/jpeg/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%2F59%2F6d%2Ff15616ba4997b4b7e90290efd7d1%2Ffilou-harbour-seal.JPG)
Filou worked with scientists for two years