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A 150-million-year-old fossilized wing skeleton shows several characteristics that were previously only seen in modern birds.

A tool that colors sections of DNA in a worm will help scientists understand how genetic material is organized inside cells.

The place where a mutation happens can be much more important than whether the mutation is a help or a hindrance.

A nation-wide study estimates that dengue infects on average 2.4 million people each year in Bangladesh, with most cases in major cities.

The nutrients available to tumor cells differ depending on the type of cancer and its location.

Understanding limitations in the ability of hepatitis C virus to replicate in non-human cells brings us one step closer to animal models suitable for testing vaccine candidates.

A new study reveals the 3D structure of a mammalian transporter that ferries sugar molecules required to build mature proteins.

A protein called hypoxia inducible factor (HIF) may be the root cause of the heightened inflammatory response in sarcoidosis patients.