SvennoJ said:
There are plenty flighless birds, frogs start out as fish, caterpillars become butterflies. All species share a lot of the same DNA. DNA for a wing is very similar to DNA for a fins or a limb. There are plenty species that don't neatly fit into kindergarten classification. Species definition is a problem onto itself as there are no neat boundaries. For example Mesodinium chamaeleon crosses the boundary between plants and animals. |
But they are still birds. Was a frog really a fish, and did that "fish" matured into something else rather than a frog? And many insect are born as larve. And there are similarities in regards to DNA. That's doesn't mean I can sprout wings.