As far as we know, no cases of live animals born with more than three heads have ever been observed, which would make the seven-headed snake pictured above a headline-grabbing phenomenon if it were real. read more
No such thing. However, very rarely, any species can be born with two. However, this is simply a case on conjoined twins, and very few survive, even in captivity. read more
THIS SNAKE WAS FOUND IN THE MOUNTAINS OF HONDURAS. AND THE BIBLE SPEAKS OF A SNAKE WITH 7 HEADS AND WITH THIS WE SEE THAT IT IS FULFILLING EVERYTHING THAT IS WRITTEN. LORD HAVE MERCY ON OUR SOUL’S.” There’s actually a bit of truth to this caption — the Bible (New Testament) does indeed mention a seven headed serpent or dragon. read more
Also, snake venom doesn't freeze your blood. Neither does any other venom. Such a substance is probably not even physically possible at all, whether natural or artificial. The most popular image that seems to be going around with this "snow snake" meme is a picture of a fake rubber snake. read more