A tiny reptile scampering along an Outback-like environment snagging insects some 318 million years ago left behind footprints that are now the oldest evidence of reptiles to date. From the size of the tracks, the researchers suggest the animal was about the size of a gecko, nearly 8 inches from snout to tail tip. "This is the earliest evidence we've got for reptiles," said Howard Falcon-Lang of Royal Holloway, University of London. [ image of fossil tracks ] Falcon-Lang discovered the tracks by accident when he was climbing the steep sea cliffs along the Bay of Fundy in New Brunswick and tripped. "I landed on the ancient boulder and looked up and there were the trackways on the boulder next to me and I still have the scars to prove it," Falcon-Lang said.  [...]