There the iguanas are dumped into other bins, generally with the dead and dying iguanas left in there with the still living ones. If they are lucky, some form of food and water is thrown in with them. They are then grabbed and stuffed in shipping containers to be sent to pet stores. All other wild-caught reptiles are similarly treated. As of the year this article was written, imports of iguanas into the U.S. topped 1 million.
Reptiles are wild animals.
Young reptiles, and adults of small species are at the bottom of the food chain. To survive, an animal has to appear as healthy and alert as possible to avoid being someone else's dinner. The 'crash and burn' as it is called, can be sudden and dramatic. Wild-caught reptiles of other species have starved to death because the environment was wrong or the wrong food or wrong sized food was offered or, as is too often the case with ball pythons, the new owner believed the pet store when the store told them the snakes can go for a year or more without eating. Iguanas, cared for properly, can live 15-20 years.