HIV spreads through direct contact with the bodily fluids of infected individuals. Once individuals are infected, HIV particles target our T cells, a type of white blood cell. Healthy T cells identify ...

This praying mantis that appears to be looking at us with a dubious expression is a budwing mantis. It is so named because the females have very small, rounded wings, giving the appearance of a flower ...

Zebrafish eyes are similar to ours. We share all the major structures, such as a single lens to focus light, a retina with photoreceptor cells to detect light, and a liquid-filled cavity between the ...