Another lizard I've thought of that may work as a habitat species (probably not as well as the aforementioned monitors, tegus or iguanas) is the Parson's chameleon.
First off, size. These are the biggest of all chameleons and can grow as big as house cats. They are much bigger than some existing habitat species such as the meerkat.
Second, temperature. The Parson's chameleon is naturally found in montane forests in Madagascar, where it can get warm and humid but also can be very cool for much of the year. I know of several people who keep their pet Parson's chameleons with seasonal outdoor access in places as temperate as Germany and Minnesota. In Florida, they can live in outdoor enclosures the year-round. To put it into perspective, I have made a table here comparing the temperature requirements of Parson's chameleon with the in-game habitat reptiles:
Among the other reptiles, the chameleon is closest in temperature requirement to the American alligator - it doesn't have the same tolerance to high temperatures that the other species do.
Third, behaviour. This is why I am a bit reticent about having chameleons as an exhibit species. When I have seen chameleons in zoos, they tend to be more active than many other lizards (including the habitat monitor lizard species). They also have many behaviours that I suspect would be cut out if they were simply the looped animations in a standard exhibit - not only would they be unlikely to climb around, I also suspect they would not show their amazing feeding behaviour.
I do think that the walkthrough exhibit may change things somewhat - with these having more space and containing more active animals, they could be the happy medium between making it a static exhibit species and a full habitat animal with enormous space requirements. If I were to rank how I would prefer the Parson's chameleon to be included, it would be: 1) Walkthrough exhibit, 2) Habitat and 3) Exhibit.
First off, size. These are the biggest of all chameleons and can grow as big as house cats. They are much bigger than some existing habitat species such as the meerkat.
Second, temperature. The Parson's chameleon is naturally found in montane forests in Madagascar, where it can get warm and humid but also can be very cool for much of the year. I know of several people who keep their pet Parson's chameleons with seasonal outdoor access in places as temperate as Germany and Minnesota. In Florida, they can live in outdoor enclosures the year-round. To put it into perspective, I have made a table here comparing the temperature requirements of Parson's chameleon with the in-game habitat reptiles:
Species | Upper temperature limit (Celsius) |
| |||
Saltwater crocodile | 42 degrees | 12 degrees | |||
American alligator | 35 degrees | 6 degrees | |||
Spectacled caiman | 42 degrees | 13 degrees | |||
Cuvier's dwarf caiman | 42 degrees | 6 degrees | |||
Gharial | 42 degrees | 14 degrees | |||
Komodo dragon | 42 degrees | 12 degrees | |||
Nile monitor | 42 degrees | 12 degrees | |||
Galapagos giant tortoise | 42 degrees | 14 degrees | |||
Aldabra giant tortoise | 42 degrees | 16 degrees | |||
Parson's chameleon | 32 degrees | 12 degrees |
Among the other reptiles, the chameleon is closest in temperature requirement to the American alligator - it doesn't have the same tolerance to high temperatures that the other species do.
Third, behaviour. This is why I am a bit reticent about having chameleons as an exhibit species. When I have seen chameleons in zoos, they tend to be more active than many other lizards (including the habitat monitor lizard species). They also have many behaviours that I suspect would be cut out if they were simply the looped animations in a standard exhibit - not only would they be unlikely to climb around, I also suspect they would not show their amazing feeding behaviour.
I do think that the walkthrough exhibit may change things somewhat - with these having more space and containing more active animals, they could be the happy medium between making it a static exhibit species and a full habitat animal with enormous space requirements. If I were to rank how I would prefer the Parson's chameleon to be included, it would be: 1) Walkthrough exhibit, 2) Habitat and 3) Exhibit.