Koa opened his mouth as she tugged on his ear, whining playfully and baring fangs.<br/>When she hopped up and started to scamper off he growled and rolled over, rubbing his back in the grass and leaves near the bank. Then he rolled back over and trotted after her, tongue hanging out for fun.<br/>His fur was covered in dirt and leaves as he tromped after her, trying to catch her tail with his teeth.