Examlex
It may be rational to be ignorant about an issue if the costs of being educated about it outweigh the benefits.
Own Species
The specific group of organisms to which an individual belongs, identifying it from others in terms of genetics and morphology.
Million Years Ago
A unit of time used in geology and paleontology to denote periods that are millions of years in the past from the present day.
Stromatolites
Layered bio-chemical structures formed in shallow water by the trapping, binding, and cementation of sedimentary grains by microorganisms, mainly cyanobacteria.
Mineralized Layers
Layers or deposits of organic or inorganic material that have been transformed into a solid, mineral-like substance over time.
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