Add Yahoo as a preferred source to see more of our stories on Google. The requirement that students in grades 6-12 be taught about “human embryological and fetal development” is a carry over from the ...

This is a preview. Log in through your library . Abstract The identities of the digits of the avian forelimb are disputed. Whereas paleontological findings support the position that the digits ...

THIS learned and imposing monograph will in the course of time take its place alongside Dobell's "Leeuwenhoek' as one of the classics of the critical and historical literature of biology. We already ...