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randomtengureporter :
[[Another inquiry! How does the metabolic speed of a Karasu compare to a Human? Standing heart rate, body temperature, and such.]]

Reponse:

Excellent, I always like hearing from you! It is definitely higher. I hint briefly at this in Part 6: “He remembered that humans had a lower body temperature than tengu, but it had never been more evident to him than now.”

Like birds, they have faster heart rates, higher temperatures, etc. Tengu also can’t sweat, so it’s important for them to stay cool in the summer.  They rely on methods like panting, shade, or bathing in cool water. Hope that clears that up, and thanks!