This fellow was peacefully grazing by himself, unlike his pugilistic cousins nearby.
How can you be certain, for instance, that you, horned lizards, and brook trout share a common chordate ancestor?
According to current systematic theory, everyone reading this right now belongs to the taxonomic category Deuterostomia.
I’ve never heard such a concise account of the principal methodological difficulties of inferring an unconstrained intelligence as a TESTABLE cause.
I am old enough to remember when, during the cladistics revolution, parsimony was the Final Referee with the Loudest Whistle.