And he said, Thou hast asked a hard thing: nevertheless, if thou see me when I am taken from thee, it shall be so unto thee; but if not, it shall not be so.
Speciation may be defined as the separation of populations of animals or plants that resemble one another closely and originally able to interbreed—into...
Graduate student Shiuan-Tze Wu led a study of some ingenious organization into the odor-sensing cells of fruit flies. He and his collaborators at the La...