title: Some comments on interpretations of Viking biological experiments.
abstract: Data from Viking experiments are analyzed from a biological viewpoint. The lack of organic matter in Martian soil could be due to the specificity of regions with optimal landing conditions. All data of labeled release experiments may be explained by assuming the existence of psychrophilic organisms, cultivated at temperatures above optimal ones, and other factors of a biological origin. The biological interpretation does not contradict the results of other life search experiments.
mesh_terms: D002245:Carbon Dioxide; D005118:Extraterrestrial Environment; D010084:Oxidation-Reduction; D012988:Soil Microbiology; D013026:Space Flight; D013696:Temperature; D014466:Ultraviolet Rays
chemical_list: D002245:Carbon Dioxide