Wing development in females is environmentally controlled, but in males, an insertion on the sex chromosome appears to dictate whether the insects grow wings, according to a study.

A zinc-sensing protein found in fruit fly intestines regulates the insect’s growth and feeding behavior.

Before the joey is born, another pregnancy has already started.

Unable to break through the water’s surface, tadpoles have a unique workaround for breathing air.

Contrary to popular thinking, the period of arrested development is an active state of maintaining muscle integrity.

Using advanced microscopy and imaging techniques, scientists have revealed new parts of the human body and overturned previous misconceptions.

The last few years have yielded new insights into human anatomy. Explore this interactive graphic to learn about some of these discoveries.  

Without a brain, the frog embryo immune system doesn’t receive the signals it needs to mobilize macrophages and fight infections.

A phthalate commonly found in shampoos, cosmetics, and cleaning products disrupts reproduction in worms.