New answers tagged taxonomy
Flowering plants evolved before bees, so clearly in the ~100 million years, they must have been pollinated by other methods. Some plants still retain this ancestral characteristic. This paper shows a species Magnolia tamaulipana (Magnoliaceae) which is pollinated by beetles.
The concept that you hint at, has been studied at the example of the island of Australia, where marsupials often look quite similar as their counterparts in the same ecological niche, which live outside Australia and have a placenta, and are less related on the DNA level (e.g.: squirrel-like animals, wolf-like, and the now everywhere extinct saber-toothed ...
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