The principle of ruling in critical thinking that this reminds us to consider is the ruling principle. Critical thinking is the objective analysis of facts to form a judgement. Based on Ruling out Rival Hypotheses; findings consistent with several hypotheses require additional research to eliminate these hypotheses.
So every organism is individually classified without the worry of mixing up two organisms like a fly and nat.
It's the definition of a SPECIES.
Those animals are from the same species.