Larger organisms, mainly eukaryotes, can consist of single cells or may be multicellular with more complex structure. Life is only known to exist on Earth but extraterrestrial life is thought probable. Artificial life is being simulated and explored by scientists and engineers.
The phenomenon of life can be approached in several ways: life as it is known and studied on planet Earth; life imaginable in principle; and life, by hypothesis, that might exist elsewhere in the universe (see extraterrestrial life).
The diversity of life on Earth is a result of mutations or random changes in hereditary material over time. These mutations allow the possibility for organisms to adapt to a changing environment.
Defining life from the viewpoint of examining its characteristics reveals how much life on Earth has in common, and helps distinguish between living and non-living things.
Life is everything that happens: When people say, "That's life," they mean all the events and tendencies, the human condition itself. You might hear about "city life" — or "country life" for that matter — meaning the habits and expectations of inhabitants of a particular place.
We've compiled the many still-life paintings by famous artists that formed and shaped the genre ...
For Dear Life examines how illness and disability shape American art, featuring Katherine Sherwood. For Dear Life: Art, Medicine, and Disability explores how illness and disability have shaped ...
PBS: Art exhibit 'For Dear Life' shows new perspectives on disability and medicine in the U.S.
“For Dear Life” is the first exhibition to survey the themes of illness and disability in American art from the mid-20th century to the COVID pandemic. It’s part of PST Art, an enormous collaboration ...