Selective serotonin reuptake inhibitors (SSRIs) are the most commonly prescribed medication for major depressive disorder (MDD), yet scientists still do not understand why the treatment does not work in nearly thirty percent of patients with MDD.

Experts have long known that tumors arise from the migration of cancer cells across organs.

Warmer temperatures are having a ripple effect on food webs in Ontario lakes, according to a new University of Guelph study.

Leaf-feeding caterpillars greatly enrich their intestinal flora by eating soil. 

For the first time ever, researchers have been able to peek deep into the mantle of the Earth under an ultraslow mid-ocean ridge, where they have been able to observe mantle melting and growth of the Earth’s crust.

The self-reported struggle of many countries to design effective plans to achieve the UN’s Sustainable Development Goals (SDGs) has inspired a new UN University online tool to guide such nations along a 6-step path towards the critical SDG 6: clean water and sanitation for all.

There is a wide variety of animals living on the Arctic seabed. Attached to rocks, they feed by removing nutrients from the water using filters or tentacles. 

Portland experiences both extreme heat in the summer months and frequent nuisance flooding in the winter and spring, and that's only expected to worsen with climate change. 

Even powerful computers, like those that guide self-driving cars, can be tricked into mistaking random scribbles for trains, fences, or school buses. 

Port Alberni, B.C., a small coastal community on Vancouver Island, evacuated its residents on Jan. 23, 2018, following a tsunami warning triggered by a massive earthquake off the coast of Alaska.