Multiple sclerosis is an autoimmune disease that affects more than 2.3 million people worldwide. 

An analysis of cervical precancers over a period of seven years showed that two strains of human papillomavirus (HPV) that have been targeted by vaccination since 2006 have declined, accounting for a smaller proportion of cervical disease, according to results published in Cancer Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research.

Flip a lobster on its back, and you’ll see that the underside of its tail is split in segments connected by a translucent membrane that appears rather vulnerable when compared with the armor-like carapace that shields the rest of the crustacean.

In the ocean's shadowy depths lies one of the Earth's last frontiers: the ocean twilight zone.

The days – or even weeks – spent waiting for the results of a cancer-screening test can feel like an eternity. Especially when early diagnosis and quick action are tied to better outcomes.

Plants absorb the mineral sulfate from groundwater.

Researchers have documented a group of tanner crabs vigorously feeding at a methane seep on the seafloor off British Columbia – one of the first times a commercially harvested species has been seen using this energy source.

Scientists learned in recent years why zebras have black and white stripes — to avoid biting flies. 

One of the largest field experiments ever conducted is providing the best evidence yet in support of a key Darwinian theory—that interactions between species are stronger toward the tropics and at lower elevations.

There is enough room in the world’s existing parks, forests, and abandoned land to plant 1.2 trillion additional trees, which would have the CO2 storage capacity to cancel out a decade of carbon dioxide emissions, according to a new analysis by ecologist Thomas Crowther and colleagues at ETH Zurich, a Swiss university.