Normally, these are not black. Their young ones have a biaxial stripe and the fully grown marine iguanas have grayish color. They actually have a dull color. They have the advantage to absorb heat from sunrays when they come out of water because of this dark color and can keep themselves warm. They mostly eat marine algae. Baby iguanas also have some crucial requirements to be furnished similar to those for any other pet. They are simple and not much fussy like many other pets for a specific food, but you have to make the things perfect for them to live and grow. Naturally, you will not allow them to get ill and ultimately expire before they become grown up young iguanas. So many stores sell young iguanas at low prices for keeping pets. Many people get attracted by these cute creatures and get involved with them to keep them as pets. It is a fact that these tiny animals can turn very large very soon and may also become aggressive. However, they are generally good pets and you have to take their proper care for food and living. Sometimes they eat insects, animal food, land crabs and carrions. Small animals and insects are pet food for young Rhinoceros Iguanas. The bush or the plant that they select for their food is precious to them. They will guard it from the other species of iguanas. They spend their lot of time in eating or lying in the sun to get heat. You have to also ensure that they live on happily in your enclosure. The right type of food is the most crucial determinant for existence of Albino Iguanas. Therefore, you have to feed them with suitable food in proper manner. Scientifically, Iguanas are categorized as herbivores; as such they should not be fed with green leaves as their primary diet. Iguana is most well-known biggest lizard family. They also lay eggs, are cold-blooded animals and can adjust to their surroundings. There are dissimilar species of Iguanas. There is a lot of difference in behavior, size, color and their condition as imperiled wild species. Species such as the red iguana and also green iguana exist in huge numbers, but there are a few species similar to Fiji Island iguana as well as Brachylophus vitiensis, which are turning out to be in endangered category.