"These frogs sleep on the bottoms of large leaves ... One reason transparency is so difficult to achieve is because of red blood cells in the circulatory system. Red blood cells are adept at ...

The northern glass frog, which ranges from southern Mexico to Ecuador, even conceals its blood to render its body more translucent, hiding nearly 90 percent of its red blood cells inside its ...

Polystyrene nanoparticles are widely used in packaging, but their effects on organisms are unclear. Very little was known ...