Sentences with phrase «placental mammals use»

Not exact matches

QUT evolutionary biologist Dr Matthew Phillips used molecular dating from DNA sequences to challenge the dominant scientific theory that placental mammals diversified 20 million years before dinosaurs became extinct.
We plan on using it to study other large - scale evolutionary patterns such as how early placental mammals dispersed across the continents via land bridges that no longer exist today.»
He cites a recent study, for instance, conducted by an international team of molecular biologists that used the DNA of living placental mammals to estimate that their ancestors originated more than 100 million years ago.
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