To recognize strange extraterrestrial life and solve biological mysteries on this planet, scientists are searching for an objective definition for life’s basic units. More than half a billion years ...

Proponents of the use of synthetic biology say it could bring some species back from the brink of extinction and help fight ...

People often feel that they can intuitively recognize whether something is alive, but nature is filled with entities that flout easy categorization as life or non-life — and the challenge may ...

THE present work contains definitions of about 10,000 terms, including several hundred lately coined expressions, many of which have not hitherto appeared in a dictionary. In a first edition all the ...