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Mammalian evolution

Relationships to chew over

Did advanced mammals evolve on the southern continents and then move north? Not according to a new study, which concludes that such mammals evolved in both the south and the north.

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Figure 1: Proposed evolutionary relationships and origins of living mammals — placentals, marsupials and monotremes — and some fossil relatives.


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Correspondence to Anne Weil.

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Weil, A. Relationships to chew over. Nature 409, 28–31 (2001).

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