Charge (heraldry) others, but the most frequently occurring of these are various forms of dragons. The "dragon", thus termed, is a large monstrous reptile with, often, a forked or barbed tongue, membraned wings like a bat's, and four legs. The "wyvern" and "lindworm" are dragons with only two legs. The salamander is typically shown as a simple lizard surrounded by flames. Also notably occurring (undoubtedly owing much of its fame to Napoleon, though it also appears in much earlier heraldry) is the bee. Animals' heads are also very frequent charges, as are the paw or leg ("gamb") of the lion, the wing
Wyvern (programming language) Wyvern (programming language) Wyvern is a computer programming language created by Jonathan Aldrich and Alex Potanin for the development of web and mobile applications with security and assurance being number one priority. Wyvern supports object capabilities, it is structurally typed, and aims to make secure way of programming *easier* than insecure - as described in the Wyvern Manifesto. One of the early available features that make Wyvern special is a way to safely use multiple programming languages within the same program so programmers can use the language most appropriate for each function while at the same time increasing the program's