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Q&A Living without a heart

Rules: No magic Eat, drink, and breathe air (mammal/reptile(amphibian ok)) Intelligent life form (no jellyfish or single-celled organisms) No artificial hearts (unless really ingenious, no swappi...

7 answers  ·  posted 9y ago by depperm‭  ·  last activity 5y ago by depperm‭

Question biology aliens creature-design