Many animals exhibit segmental patterns that manifest themselves during development. One classical example is the sequential and rhythmic formation the segmental precursors of the backbone, a process ...

The body plan of turtles is unique among tetrapods in the presence of the shell. The structure of the carapace involves a unique relationship between the axial and the appendicular skeletons. A common ...

We know much about how embryos develop, but one key stage -- implantation -- has remained a mystery. Now, scientists have discovered a way to study and film this 'black box' of development. This new ...

All vertebrate embryos follow a common developmental path due to their common ancestry. All have a set of very similar genes (the homeobox genes) that define their basic body plan. As they grow, the ...

It’s a familiar story: the virile sperm fights its path through the hostile uterus to the passive female egg. After fertilisation, the resulting ball of cells is “totipotent,” with each unit equally ...

Once couples opt to undergo fertility treatment, men can experience feelings of stress and anxiety. Care Fertility highlights ...