GreenIguana.

zayzayem, Flickr Name: Green Iguana Personality: In the wild, the green iguana is social, according to the Smithsonian National Zoological Park. However, males can be territorial and aggressive, making it difficult to keep them in social groups in captivity. Care: In addition to specific housing requirements (including the enclosure, heating, lighting and humidity), you'll need to trim your iguana's nails regularly, bathe them occasionally and monitor their poop and appearance, says the Iguana Pages. Common Health Issues: According to ReptileChannel.com, green iguanas can live up to 20 years or so in captivity with proper care, though it's more common for them to live closer to nine or ...