An embryo consists of cells. These cells divide to make new cells, allowing the embryo to grow. The cells experience variability in how and when they divide and in how they interact with each other.

Embryo development starts when a single egg cell is fertilized and starts dividing continuously. Initially a chaotic cluster, it gradually evolves into a highly organized structure. Scientists have ...

As nearly one in six couples experience fertility issues, in-vitro fertilization (IVF) is an increasingly common form of reproductive technology. However, there are still many unanswered scientific ...

Multicellularity is one of the most profound phenomena in biology, and relies on the ability of a single cell to reorganize itself into a complex organism. It underpins the diversity in the animal ...

After cells in the developing embryo divide, microtubules at the dividing poles of each cell pull actin proteins into a ring. Those rings expand across the cells and, with the help of the motor ...

Did you know that the most critical changes of pregnancy occur before many women realise they are pregnant? Right after fertilisation, the body begins an extraordinary process of growth and ...

As coral embryos divide the size of the component cells gets smaller. This image shows early larvae of three different diameters which were produced by subjecting a culture of coral embryos containing ...

A team of biologists and mathematicians studied hours of video to learn how insects take shape in the egg. The secret is geometry. Micrographs of various portions of cricket embryos during development ...

At the end of the 4-cell stage, embryos divide to the 8-cell stage, forming many different shapes and high variability between embryos. Then, cells increase their surface tension which brings cells ...