Nowhere do these scientists explain how bacteria invented magnetotaxis and encoded it into their genes.
It typically takes up to three generations of butterflies to make the complete journey. This means that the navigation information is genetically programmed.
They appear in the early Cambrian fossil record: the first examples of the most diverse phylum on earth. Who knew their skills would become the envy of human engineers?
New clues to the prevalence of magnetotactic bacteria suggest that diverse animals may employ microbes for help with long-distance navigation.
Take a moment to consider the impact of labor on the development of evolutionary theory.