Shark Spa Services

Blacktip reef shark. Source: Luc Viatour/Wikimedia Commons. Distributed under a CC BY-SA 3.0 license.

In oceans all across the globe, fish have been observed rubbing up against sharks. Now, researchers collecting these observations have concluded that fish-on-shark chafing is more frequent and widespread than previously recognized—suggesting the behavior plays an important ecological role and raising more questions for scientists to explore.

Read more at my Animal Minds blog: Shark Spa Services.