Rare photo of a 'smiling' gecko lizard in Indonesia
Updated 15:06, 17-Dec-2018
CGTN
["china"]
A photographer captures the rare moment of a gecko lizard smiling in Batam, Indonesia. 
It is very rare to see a lizard "smiling" and it usually happens in a blink of an eye. /VCG Photo

It is very rare to see a lizard "smiling" and it usually happens in a blink of an eye. /VCG Photo

This gecko sticks out its tongue after it "smiles." /VCG Photo

This gecko sticks out its tongue after it "smiles." /VCG Photo

It appears to be in a good mood. /VCG Photo

It appears to be in a good mood. /VCG Photo

Geckos have unique vocalizations among lizards, they usually make chirping or clicking sound when interact with others. /VCG Photo

Geckos have unique vocalizations among lizards, they usually make chirping or clicking sound when interact with others. /VCG Photo

Most gecko species have adhesive tow pads which allow them to cling on various surfaces. /VCG Photo

Most gecko species have adhesive tow pads which allow them to cling on various surfaces. /VCG Photo

The unique structure of the geckos' eyes allows them to have extremely good night vision. /VCG Photo

The unique structure of the geckos' eyes allows them to have extremely good night vision. /VCG Photo

Gecko lizards are found in warm climates throughout the world. Most species cannot blink, but they manage to keep their eyes clean and moist by constantly licking them. They have a unique eye structure with fixed lens within each iris that enlarges in darkness to let in more light. Therefore their color visions in low light can be 350 times more sensitive than that of a human's.