Mimivirus is the largest and most complex virus known. Is it an evolutionary bridge between nonliving viruses and living organisms, or is it just an anomaly? Aa Aa Aa Viruses are small and fairly ...

The central dogma of biology defines the flow of genetic information: It describes how proteins are made from mRNA templates, ...

According to a paper published Thursday in Cell, complex nervous systems arose in the distant past after viruses inserted ... These ancient viruses didn’t intend to change the structure of their hosts ...