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Why Do Iguanas Bob There Head

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Why do Iguanas Bob there Heads?

Bobing Head
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(Angel fire picture)


Head bob
Iguanas often shake their heads. This behavior is called the "Head Bob" or "Bobbing". This is their unique communication method as they don't have a vocal organ. As you see, this language is very difficult to human. I live with 2 iguanas for about 4 years but I still can't translate exactly. It sometimes means "I love you, I love you, I love you." but it sometimes means "I hate you, go away! Mad mad mad". The difficult part of this language is, these two opposite meaning phrases seems same to human. I know iguanas can recognize and communicate their thoughts.