You'll notice that the places that you see blue veins are in areas where the skin is thin and the blood vessel underneath is pushing up on it stretching the skin over it. Light hitting the dark color of the vein underneath the skin, in combination with the skin itself is what causes it to appear blue in these areas.
Common krait. The common krait (Bungarus caeruleus), also known as Indian krait or blue krait) is a species of venomous snake of the genus Bungarus found in the jungles of the Indian subcontinent. It is a member of the big four species, inflicting the most snakebites on humans in India.
Garter snake â also called garden snake or gardener snake â is the common name given to harmless, small to medium-sized snakes belonging to the genus Thamnophis. Endemic to North America, they can be found from the Subarctic plains of Canada to Central America.ating a frog. Garter snakes, like all snakes, are carnivorous. Their diets consist of almost any creature they are capable of overpowering: slugs, earthworms, leeches, lizards, amphibians, ants, crickets, frog eggs, toads, minnows, and rodents.