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7

Make it macrothermic. There is a prominent theory that the largest land animals that have ever lived - the sauropods - didn't actively generate heat in the manner that true warm-blooded animals do, but weren't strictly speaking cold-blooded either. Instead, they had low-energy lifestyles and kept warm simply by being huge. If you make the dog's internal ...


1

About as big as the largest living land animals, which is around 50 metric tons. At that point the square-cube law means that Clifford would be so heavy that his legs wouldn't be able to hold him up. Why aren't I mentioning anything to do with thermoregulation? Because as an animal becomes bigger, it's basal metabolism becomes lower per unit mass. Put ...


9

If you already allow fiddling with the muscles and bones and lungs to sidestep the square-cube issues, then why not just do the same for the thermal problems? Maybe the new tissues in the lungs are stable at 800C, and the Clifford's flamethrower almost-plasma breath is its way of cooling down? (There's a reason why Godzilla has more impressive breath weapon ...


8

No. The Iron compounds in a beaver's teeth are not there to make its teeth stronger, they make the front layer of its teeth harder. This means that the beaver can gnaw tough, abrasive material such as wood without its teeth wearing down so fast. Additionally, the differential in hardness between the front and the back of the teeth means that the higher ...


4

Probably not Teeth and bones are different. Their structures are different. Their formation processes are different. They mostly share the same minerals but bones have collagen unlike teeth. Collagen provides the flexible framework of bones and heals bone fractures as well. Dental homeostasis and bone homeostasis are different and affected by different ...


1

It's a self-replicating machine There is no need for any special strange elements or biological components. It would be plausible enough (or perhaps even more plausible) for these aliens to simply be complex machines These machines would, like pretty much all self-replicating systems, need two things: Energy and materials The energy could come in many forms; ...


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