Biology

New research reveals how marine microbes use an extra membrane that once had digestive functions to boost their yield from photosynthesis.

New modeling work suggests why nature is more diverse than niche-based ecological theory predicts.

To buffer the brain against menaces in the blood, a dynamic, multi-tiered system of protection is built into the brain’s blood vessels.

With embryolike constructs built entirely from stem cells, researchers can revolutionize our understanding of development. But how close to an embryo is too close?

The marine geochemist Chris German brings decades of experience studying seafloor hydrothermal vents to NASA’s preparations for visits to other ocean worlds in our solar system.

Consciousness, our experience of being in the world, is one of the mind’s greatest mysteries, but as the neuroscientist Anil Seth explains to Steven Strogatz, research is making progress in understanding this elusive phenomenon.

Changes in the 3D structure of their genome gave skates and rays their distinctive winglike fins and pancake flatness.

New experiments show that the brain distinguishes between perceived and imagined mental images by checking whether they cross a “reality threshold.”

Memories may affect how well the brain will learn about future events by shifting our perceptions of the world.