A brainless marine creature exposes an ancient body-building system once believed unique to complex life.

Neurons placed inside engineered living bodies built from frog cells self-organize, become active, and reshape movement ...

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

A study out Thursday in Science argues that Neanderthal men and human women were particularly inclined to mate, a sexual habit that offers insight into the evolution of the modern human genome. In ...

At several archaeological sites in southern Africa, hundreds of highly unusual fragments of ostrich eggs have been found.

A cluster of fossilized dinosaur eggs discovered nearly five decades ago has revealed new secrets after being scanned with a stadium-sized particle accelerator. The high-resolution imaging allowed ...

Using art as an entry point can help make the science of human embryology more accessible. “Art is a magnet for engagement and curiosity,” Barresi says. “Art invites people in and puts them in a more ...

An international team of paleontologists has uncovered the oldest known fossil reptile embryos, dating back approximately 280 million years. This discovery, featuring well-preserved embryos of ...

In mammals, the fusion of sperm and oocyte gives rise to a totipotent zygote, which undergoes a series of cleavage divisions and differentiation events. During this process, the embryo transitions ...

In July 1932, young pathology resident Elizabeth M. Ramsey was performing a routine autopsy with a colleague at New Haven Hospital when she made an extraordinary discovery: an apparently normal human ...

Selecting the healthiest embryo is one of the most important steps in in‑vitro fertilization (IVF), yet it remains one of the most uncertain. Roughly 15% of couples worldwide experience infertility, ...