Here's my take on who the achievement really belongs to (in ascending order): DNA based life < Mammals < Primates < Homo Sapiens < Countries involved in space

Here's my take on who the achievement really belongs to (in ascending order): DNA based life < Mammals < Primates < Homo Sapiens < Countries involved in space exploration < Taxpayers of the USA < Rich tax payers of the USA (they contributed more proportionally right?) < People working at NASA < People actually working on the Curiosity project