Never been trues like half ot the image is that reply why in the holy fuck of all fucks is there a circle ? Maybe its cropped out from a larger image ?
No, but somewhat useful when a red black and yellow snake shows up in the playground and you need to know if you should tell the teacher and cancel recess or not.
You can also check if it's venemous by checking how long its fangs are. Constrictors have a lot of small short teeth for holding onto prey. Venemous snakes have at least 2 large fangs for injecting venom. Therefor if a snake has big teeth then it's either venomous or a very large constrictor. So next time you're wondering if a snake is dangerous just take a good close look at it's teeth to find out.