Cueva de las Manos in the context of "Santa Cruz Province, Argentina"

In archaeology, cave paintings are a type of parietal art (which category also includes petroglyphs, or engravings), found on the wall or ceilings of caves. The term usually implies prehistoric origin. Several groups of scientists suggest that the oldest of such paintings were created not by Homo sapiens, but by Denisovans and Neanderthals.

Discussion around prehistoric art is important in understanding the history of Homo sapiens and how human beings have come to have unique abstract thoughts. Some point to these prehistoric paintings as possible examples of creativity, spirituality, and sentimental thinking in prehistoric humans.

Perito Moreno is a town in the northwest of Santa Cruz Province, Argentina, 25 km east of Lake Buenos Aires. It should not be confused with the Perito Moreno National Park over 300 km south by road, or the Perito Moreno Glacier near El Calafate. The town is the capital of the Lago Buenos Aires Department. It lies on the RN43, a paved road which links Caleta Olivia on the Atlantic coast to Los Antiguos and the Chilean frontier 60 km west, and Ruta 40, running north and south.

The town is a centre of cattle ranches and smallholdings producing fruit and vegetables. Tourism is also an important industry. Perito Moreno is the closest town to Cueva de las Manos, 170 km south by road, and Parque Laguna.

Superimposition is the placement of one thing over another, typically so that both are still evident. Superimpositions are often related to the mathematical procedure of superposition.

In human biology, handedness is an individual's preferential use of one hand, known as the dominant hand, due to and causing it to be stronger, faster or more dextrous. The other hand, comparatively often the weaker, less dextrous or simply less subjectively preferred, is called the non-dominant hand. In a study from 1975 on 7,688 children in US grades 1–6, left handers comprised 9.6% of the sample, with 10.5% of male children and 8.7% of female children being left-handed. Overall, around 90% of people are right-handed. Handedness is often defined by one's writing hand. It is fairly common for people to prefer to do a particular task with a particular hand. Mixed-handed people change hand preference depending on the task.

Not to be confused with handedness, ambidexterity describes having equal ability in both hands. Those who learn it still tend to favor their originally dominant hand. Natural ambidexterity (equal preference of either hand) does exist, but it is rare—most people prefer using one hand for most purposes.

Carlos Joaquín Gradin (20 May 1918 – 31 March 2002), also known as Carlos Gradín, was an Argentine surveyor and archaeologist. He carried out numerous studies in the Patagonian region, and is known for his extensive studies of Cueva de las Manos. He was a member of the National Scientific and Technical Research Council (CONICET).