Changes

[[Image:Horned_lizard_blood.jpg|200px|thumb|right|'''Coast horned lizard (''Phrynosoma coronatum'') after squirting blood from its eye to protect itself.''' (Wikimedia Commons)]]

[[Image:Horned_lizard_blood.jpg|200px|thumb|right|'''Coast horned lizard (''Phrynosoma coronatum'') after squirting blood from its eye to protect itself.''' (Wikimedia Commons)]]

[[Image:Lizard_Fight.jpg|200px|thumb|right|'''Two male red-headed rock agama lizards fighting''' (Wikimedia Commons)]]

[[Image:Lizard_Fight.jpg|200px|thumb|right|'''Two male red-headed rock agama lizards fighting''' (Wikimedia Commons)]]

When threatened, iguanas, monitors and other lizards tend to display defensive aggression. They stand sideways to the threat, swallow air to increase their size, stand high off the ground to look bigger and lash at the threat with their tails. Some lizards may display head bobbing and push-ups or gape and threaten to bite.

When threatened, iguanas, [[Monitor|monitors]] and other lizards tend to display defensive aggression. They stand sideways to the threat, swallow air to increase their size, stand high off the ground to look bigger and lash at the threat with their tails. Some lizards may display head bobbing and push-ups or gape and threaten to bite.

* When threatened or molested by other animals, such as dogs, coyotes or foxes, certain horned lizards (''Phrynosoma cornutum, P. coronatum and P. solare'') will respond by squirting a spectacular amount of blood from their [[Lizard Eye|eyes]], usually towards the predator's head, which causes it to retreat.

* When threatened or molested by other animals, such as dogs, coyotes or foxes, certain horned lizards (''Phrynosoma cornutum, P. coronatum and P. solare'') will respond by squirting a spectacular amount of blood from their [[Lizard Eye|eyes]], usually towards the predator's head, which causes it to retreat.