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.
That depends on how you define largest. The longest snake ever caught was a reticulated python measured at 32 feet. The heaviest snake ever caught was a green anaconda measu â¦ ring 25 fee long and weighting 550 pounds.Anacondas are not quite as long a reticulated pythons, but they are thicker.hat depends on how you define largest. The longest snake ever caught was a reticulated python measured at 32 feet. The heaviest snake ever caught was a green anaconda measu â¦ ring 25 fee long and weighting 550 pounds.