Nanostructure of eggshell

How is it that fertilized chicken eggs manage to resist fracture from the outside, while at the same time, are weak enough to break from the inside during chick hatching? It’s all in the eggshell’s […]

Animal Diseases

Antiviral Nasal RNA Spray

Designer RNA molecules delivered through the nose show early promise for treating West Nile fever, trials in mice show. No effective therapies exist for the illness caused by a mosquito-borne virus, which can invade the […]


Fluorescent Heads of Chameleons

Maybe their moms told them nobody likes a showoff. That would explain why many species of chameleon are hiding fluorescent bone bumps on their heads that scientists only just discovered. Chameleons also have independently moving eyeballs, […]


Why Animals are not always pretty

Nearly 2,000 years ago, Pliny the Elder reported that hippopotamuses find relief from overeating by piercing their skin in a hippo version of bloodletting. Eventually, scientists learned that the oozing red stuff Pliny described isn’t […]