Neuroscience

Anesthesia study unlocks clues about the nature of consciousness

For decades, one of the most fundamental and vexing questions in neuroscience has been: What is the physical basis of consciousness in the brain? Most researchers favor classical models, based on classical physics, while ...

Oncology & Cancer

A modified peptide shows promise for fighting tumors

The growth of healthy tissues in the body depends on the development of new blood vessels, a process called angiogenesis, that enables proper blood flow, meaning nutrients and oxygen are delivered while toxic metabolic products ...

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Animal

Animals are a major group of mostly multicellular, eukaryotic organisms of the kingdom Animalia or Metazoa. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their life. Most animals are motile, meaning they can move spontaneously and independently. Most animals are also heterotrophs, meaning they must ingest other organisms for sustenance.

Most known animal phyla appeared in the fossil record as marine species during the Cambrian explosion, about 542 million years ago.

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