A small tissue fold in fly embryos, once thought purposeless, plays a vital role in stabilizing tissues. Researchers show that it absorbs stress during early development, and its position and timing ...

A new study by Prof. Ariel Chipman of The Alexander Silberman Institute of Life Science at the Hebrew University of Jerusalem provides a novel model for understanding the development and evolution of ...

By tracking neural crest cells in catshark embryos, researchers discovered that the molecular toolkit behind face-building is surprisingly conserved across jawed vertebrates. The real differences ...

In order for vertebrate embryos to develop their body axes, they require what is known as an embryonic signaling center. This group of cells provides the instructions that determine where up and down, ...

Add Yahoo as a preferred source to see more of our stories on Google. The characteristic hammer-shaped head is just becoming visible in this image of an embryonic bonnethead shark. Scale bar = 1 cm.

Development of embryos "We found that the randomness in when and how cells divide actually helps embryos to develop properly," says Dimitri Fabrèges, a postdoc researcher in the Hiiragi group. He and ...

It's challenging to sustain a pregnancy when food is short, or conditions are otherwise tough. That's why many mammalian embryos can postpone their growth to get through periods of environmental ...

Despite differences in shape and size all insects are characterized by a body organization that includes three units: a head, thorax and abdomen (panels A-B). In contrast all spiders (and other ...