5100 x 3400 px | 43,2 x 28,8 cm | 17 x 11,3 inches | 300dpi
Data acquisizione:
10 ottobre 2007
Ubicazione:
Guayaquil Ecuador South America
Altre informazioni:
The two species of lizard within the genus Iguana possess a dewlap, a row of spines running down their back to their tail and a third eye on their head, the parietal eye, which looks just like a pale scale on the top of their head. Behind their neck are small scales which resemble spikes, named tuberculate scales. The large round scale on their cheek is a subtympanic shield. Iguanas have excellent vision and are able to see shapes, shadows, color and movement at long distances. Iguanas use their eyes to navigate through crowded forests, as well as for finding food. They also use visual signals to communicate with members of the same species. They respond to visual stimulus of colors such as orange, yellow, pink, and in rare cases blue as food substances. An iguana's ear is called the tympanum. It is the iguana's ear drum located right above the subtympanic shield and behind the eye. This is a very thin and delicate part of the iguana, and crucial to their hearing.
