Having two ridges on the chewing surface of molars, found in certain mammals.
From Greek 'bi-' (two) + 'lophos' (crest/ridge) + 'odontos' (tooth). The term describes a specific dental pattern where molars have two distinct ridges rather than other configurations, used in paleontology and comparative anatomy.
This dental pattern is super specific to certain rodents and marsupials—scientists use these tiny tooth ridge differences to figure out which animals are related to each other, kind of like using fingerprints to identify people!
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