You can see up to 3 on the same map on official, is saw 2 in one heatwave, a parasaur can detect them, and you can see one glitched in the ground if you are the 1st person to render it after a heatwave, but once you leave render it will be invisable, they will respawn in the same spot that you see it glitched or where it lands after a heatwave

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