At first glance, it looks like the start of a human pregnancy: A ball-shaped embryo presses gently into the receptive lining ...

Scientists have developed an experimental way to study how human embryos implant in a uterus, which may provide new insights into why miscarriages occur and how they can be prevented.

Transposon sequencing analyses reveal that among genomically diverse clinical Mycobacterium intracellulare strains and the type strain, 131 genes were comprehensively identified as universal essential ...