The secret to youthful appearance and repairing scars may lie in a microscopic skin structure humans share with pigs and grizzly bears — but, surprisingly, not monkeys. While it had been thought these ridge and valley-like skin microstructures — called rete ridges — form during fetal growth, researchers at Washington State University’s College of Veterinary Medicine found they actually develop shortly after birth and identified a key molecular signal that drives their development.

Researchers from King Abdullah University of Science and Technology (KAUST) have developed deepBlastoid, the first deep-learning platform specifically designed for the high-throughput, automated classification of human stem cell-derived embryo models (blastoids). By leveraging a ResNet-18 architecture and a novel Confidence Rate metric, the model achieves up to 97% accuracy and processes images 1,000 times faster than human experts. This tool facilitates large-scale drug screening and basic research into early human development by providing a standardized, objective evaluation framework.