In my opinion, Salvators can keep higher Body temps because they have a efficient method to lower max temps. The water, While indeed your water may not be cold, its much much cooler then the tree branches and other sun exposed surfaces, which is hotter then the air. Please test these things.



ALso understand



Also, larger massed monitors behavior is directly based on the ability to control deep body temps. That is, most desert species are not on the surface for extented periods durning warmer temps. But smaller members of their same species are. This is because of their ability to loss energy. Smaller individuals can loss temps quickly, so they can gain it for longer periods without overheating.



For instance, in Australia, you have goulds complex and a simialr sized relative, the mertens monitors. You will see large adults of both. But with the goulds they will be out mainly in the early mourning and late afternoon, Where as, the large mertens are out all day(they do have water to control mass temps) If large mertens are not around suitable water(dried up) they do down in the ground and stay there, yet smaller mertens can still be found out, in other moist conditions, like thich foliage and such. As are smaller goulds. Remember, these are examples and all examples can be counterdicted. They of use to understand, not to argue.



If you watch how these adults behave, you will start to understand why they do what they do. To behave, includes all activities like feeding, hunting, gestating ovum or eggs. All require its own set of rules and associated behaviors. Cheers

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