|MadSci Network: Development|
Hello Jarrad, Yes, we do form gills during foetal development. A 6 week old human foetus will have these "primitive gills" but by seven weeks they have disappeared, so it all happens very early in development (since human development can be as long as 36 weeks). The gills are called primitive gills because they do not actually develop to become real gills - they are always covered with skin. I hope this helped. Brian ps, I too am from Perth, Western Australia, although I am now in New York City. references: A Guide to Vertebrate Development, 7th Ed. by Robert Rugh (Burgess Publishing Company, Minneapolis, Minnesota, USA) Admin note: here are some other posted answers that you may find interesting. http://www.madsci.org/cgi-bin/cgiwrap/www/search?query=branchial
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