friesen@psivax.UUCP (Stanley Friesen) (01/24/85)
In article <373@cadovax.UUCP> keithd@cadovax.UUCP (Keith Doyle) writes: >other similar evidence of evolutionary history. The early development >of the skull and some internal organs progress through stages that are >somewhat like that of simpler animal forms. In addition, there is some >indication that gills and/or gill-like openings develop and occasionally >persist. A brief side point, actually one of the embryonic gill slits *regularly* persists in adult humans, we call them the ears. This can be determined by following the developement of an embryo, watching the fates of the originally *full* set of gill slits of the early embryo. -- Sarima (Stanley Friesen) {trwrb|allegra|burdvax|cbosgd|hplabs|ihnp4|sdcsvax}!sdcrdcf!psivax!friesen