Up-to-date population estimates are difficult to determine because of environmental restraints preventing access to sites where the frogs are thought to live. The goal of the recent efforts has been ...

Growing tissues can crack, break, and dissociate to form structures that can later withstand immense forces.

For many years, researchers believed that the DNA inside a newly fertilized egg began as a structural ‘blank slate’ – a loose ...

For decades, scientists viewed the genome of a newly fertilized egg as a structural "blank slate"—a disordered tangle of DNA ...

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 ...

Scientists have gotten an unprecedented look at how the human embryo implants in a uterus. They did this by creating very primitive, womb-like environments in the lab. "This is really important work ...

The work appears in Cell. "Understanding embryo implantation and embryo development just after implantation has significant clinical relevance as these stages are particularly prone to failure," said ...

Successful fertility treatments, including in vitro fertilization (IVF), is often reliant on a clear understanding of developmental stages of human development. Clinicians working with assisted ...

The team observed the emergence of the three-dimensional embryo-like structures under a microscope in the lab. These started producing blood (seen here in red) after around two weeks of development - ...

Add Yahoo as a preferred source to see more of our stories on Google. John Gurdon in 2012, on the day of his Nobel Prize announcement, with the framed report card from his Eton biology master that ...