Endothermic or ectothermic? Alien biology

Hey guys so I've posted on this site before and I've finally made an account so I'd like to ask again about mine and my friend's webcomic WIP. Biology wise, I've made three main groups of animals, a four-limbed, mammal-like group, a six-limbed group that is quite mammal-like but also very insect-like, with adaptable limbs, and of course the obligatory insect/arthropod group.

The group I want to focus on is the first one however, as the main character's companion and also the sentient race fall under this group.

To elaborate, they have smooth, sometimes scaled skin (scales grow in patches and lines in certain places according to the needs of the creature), no feathers or fur and they can get quite large. behaviorally, they are also quite like mammals, deer-like and cow-like herbivores are abundant and predators most commonly rely on stalking and capturing instead of lying in wait. Their environment, or at least the one touched upon in the comic, will be a fairly stable, fairly even temperature plains and forest. Of course its an entire planet so there are deserts and tropics but the planet does not really have oceans, more like large seas. The plains and forest are the focus though, the mammal-like group will mostly be on the grass plains.

Of course that's all quite general, being an entire group of animals, but it's the most accurate mode i can make. I know it's a broad question but I need help deciding whether they are ectothermic or endothermic, maybe even in-between (so far I'm leaning towards the last two).

posted about 9 years ago

XenoDwarf‭

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