An octopus has 3 hearts. One pumps blood through its organs; the 2 others pump blood through its gills. When … Read More & Source The post WTF Fun Fact – Octopus Hearts appeared first on WTF Fun Facts. Source
Pill bugs, also known as roly-polys, are not insects but rather crustaceans. They breathe through gills and are more closely … Read More & Source The post WTF Fun Fact – An Unlikely Crustacean appeared first on WTF Fun Facts. Source
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