Moontanman Posted April 5, 2009 Report Posted April 5, 2009 Hermit Arthropods 500 Million Years Ago?ScienceDaily (Apr. 4, 2009) — When animals first crawled onto land, one of the greatest obstacles they had to contend with was figuring out how to breathe. No longer bathed in oxygen-rich marine waters, their gills would surely have dried out. Hermit Arthropods 500 Million Years Ago? Quote
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