Researchers confirm using zebrafish that if a certain gene is not excluded when vertebrate embryos are developing, the notochord will not elongate properly, resulting in a shortened form. Can a single ...

Hair, nails, and horns, all made up of keratin, are some of the hardest and most resilient structures in animals. Inside zebrafish cells, keratin plays a distinct role, giving them the strength they ...

Embryonic development is one of the most dynamic biological processes in nature. Cells and tissues organize and reorganize ...

Naturally occurring haploids are predominantly documented in plants; the first report dates to 1923, when haploid individuals were identified in the Jimson Weed. Haploidy also occurs in certain animal ...

This video shows THG/SHG 4-D imaging of the zebrafish embryo cleavage stages. This video relates to an article that appeared in the Aug. 20, 2010, issue of Science, published by AAAS. The study, by Dr ...

New research describes how nerve cells and muscle cells communicate through electrical signals during development -- a phenomenon known as bioelectricity. The communication, which takes place via ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. What do the earliest stages of a pregnancy look like? Embryonic ...

Congenital heart defects (CHD) occur in 1 in every 100 babies born daily in the United States of America. Although CHD can be surgically repaired, it has been shown to complicate heart health with ...

Naturally occurring haploids are predominantly documented in plants; the first report dates to 1923, when haploid individuals were identified in the Jimson Weed. Haploidy also occurs in certain animal ...

Striking new psychedelic videos give a glimpse into what living organisms look like during their earliest moments — and it took scientists years to capture. The videos are part of a new atlas of ...