New research ties glyphosate–metal mixtures to possible kidney damage and a key safety study is retracted, raising concerns for heavy users.

An embryo in the making (IMAGE) University of Basel Caption Each color shows a distinct group of cells as they organize during early development of a zebrafish embryo.

How does a tiny cluster of cells become an embryo with a head, trunk, and tail? And how do thousands of genes coordinate this development? A new imaging method makes it possible to visualize the ...