New nanosensor gives unprecedented look at dopamine release

Astronomers build new telescopes and peer at the night sky to see what they might find. Janelia Group Leader Abraham Beyene takes a similar approach when looking at the cells that make up the human brain.

The benefit of redundancy in biological systems

When viewed from an engineer's perspective, biology is often messy and imperfect. For example, redundancy is a common feature of biological systems, with the job of one biological component overlapping with that of another.

Klara, a transparent fish for research on aging

The body pigmentation of an organism is caused by coloring substances and structures that are found in the cells of skin, hair, feathers, or scales, for example. This pigmentation considerably limits investigations of important ...

Amber reveals evolution of parasitism of nematodes

Nematodes (roundworms) are distributed worldwide in almost all habitats. The Mermithidae, a family of nematodes larger than others, are obligate invertebrate parasites which occur in insects, millipedes, crustaceans, spiders, ...

Scientists study the evolutionary origins of coronary arteries

Coronary arteries are a vital part of the human heart, providing it with oxygen-rich blood so that it can work. By comparing the hearts of mammals, birds, reptiles, fish and frogs, a multi-institutional team of researchers ...

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