About: http://webisa.webdatacommons.org/99110178

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	There is reason to think that Mars was warmer and wetter once, so there may have been water for them to live in, but there is no oxygen to speak of to swim away from -- the Martian atmosphere is mostly CO2.
http://www.w3.org/ns/prov#wasQuotedFrom	strangehorizons.com