Some animals make hostile facial expressions that look like they're smiling, and this misinterpretation of their angry or aggressive "smile" can spell trouble for humans who don't know better.
But there's no mistaking the smile on Kohaku the Gecko's sweet little face- because it's the face of pure joy brought about by his little lizard toy.
Kohaku's human Taylor Nicole Dean gave him the little plastic lizard just to see what he would do, and Kohaku was so delighted with his new buddy Taylor let him keep the toy and started snapping pics of the adorable pair.
Now Kohaku has a friend for life who won't steal his food and doesn't make a squeak- unless Kohaku squeezes him too tight!
-Via Top 13