Otters, beavers and other semiaquatic mammals keep clean underwater, thanks to their flexible fur
- Written by Andrew Dickerson, Assistant Professor of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee
Otters and other semiaquatic mammals can keep clean even in dirty water. AP Photo/Kirsty WigglesworthUnderwater surfaces can get grimy as they accumulate dirt, algae and bacteria, a process scientists call “fouling.” But furry mammals like beavers and otters that spend most of their lives wet manage to avoid getting their fur slimy....

