For example, the European robin ... which belongs to a different genus. The grouping of families was added to allow the large number of new species to be included in this system.

Common names, or local names for species can cause confusion. For example, in Europe ... and belongs to a different genus. The grouping of families was added to allow the large number of new ...

next to examples of modern tree resin. Researchers questioned its true identity, so they used new technologies to determine the flower's genus and species once and for all. They used toothpaste ...