Trilobites: Give a Cow a Brush, and Watch It Scratch That Itch Some researchers think mechanical brushes aren’t just some spa amenity for dairy cows — they’re important to the animal’s well-being. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Q&A: The Way the Wind BlowsSpace superpower China to make first contact with ALIEN Life using world's largest dishDebating Whether Reptiles or Amphibians Should Be House PetsWhat’s at Stake in the Bonn Climate Talks?Real-life Jurassic Park: Rare 80 million-year-old shark species FOUND off Portuguese coast$300 Billion War Beneath the Street: Fighting to Replace America’s Water Pipes