Trilobites: Rock Carvings of Ancient Dogs Getting Taught New Tricks Engravings in the Saudi desert might be the earliest depictions of human-canine companionship. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:When is the Delta Aquarid meteor shower 2017? Where can I watch it?SHOCK CLAIM: Robots could THREATEN future of human raceDr. Shigeaki Hinohara, Longevity Expert, Dies at (or Lives to) 105Marina Ratner, Émigré Mathematician Who Found Midlife Acclaim, Dies at 78Sticker on underwear sends distress signals to STOP sexual assaultCelgene to Pay $280 Million to Settle Fraud Suit Over Cancer Drugs