Wyvern and more as dangerous beasts smaller, weaker, and less intelligent than dragons. While a fantasy dragon often has a breath weapon, such as fire, wyverns rarely have such abilities and are more feared for their ferocity and sharp teeth and claws. Wyverns are sometimes associated with poison, either in the form of venomous fangs or poisonous breath, but this trait is not universally represented and may be a more recent addition to the lore based on the gila monster. A wyvern will typically be unable to speak, while a dragon often does have that ability. The wyvern features frequently in
Tincture (heraldry) not regard it as a "real heraldic tincture". On the whole, French heraldry is known for its use of azure and or, while English heraldry is characterized by heavy use of gules and argent, and unlike French heraldry, it has always made regular use of vert, and occasional, if not extensive, use of purpure. German heraldry is known for its extensive use of or and sable. German and Nordic heraldry rarely make use of purpure or ermine, except in mantling, pavilions, and the lining of crowns and caps. In fact, furs occur infrequently in German and Nordic heraldry. The colours