The Clan of the Cave Bear
Overview
 
The Clan of the Cave Bear is an historical novel
Historical novel
According to Encyclopædia Britannica, a historical novel is-Development:An early example of historical prose fiction is Luó Guànzhōng's 14th century Romance of the Three Kingdoms, which covers one of the most important periods of Chinese history and left a lasting impact on Chinese culture.The...

 by Jean M. Auel
Jean M. Auel
Jean Marie Auel is an American writer. She is best known for her Earth's Children books, a series of novels set in prehistoric Europe that explores interactions of Cro-Magnon people with Neanderthals...

 about prehistoric times
Prehistory
Prehistory is the span of time before recorded history. Prehistory can refer to the period of human existence before the availability of those written records with which recorded history begins. More broadly, it refers to all the time preceding human existence and the invention of writing...

 set before the extinction of the Neanderthal
Neanderthal
The Neanderthal is an extinct member of the Homo genus known from Pleistocene specimens found in Europe and parts of western and central Asia...

 race after 600,000 years as a species, and at least 10-15,000 years after Homo sapiens remains are documented and dated in Europe as a viable second human species. It is the first book in the Earth's Children
Earth's Children
Earth's Children is a series of speculative alternative historical fiction novels written by Jean M. Auel set circa 30,000 years before present. There are six novels in the series...

book series
Book series
A book series is a sequence of books having certain characteristics in common that are formally identified together as a group. Book series can be organized in different ways, such as written by the same author, or marketed as a group by their publisher....

 which speculates on the possibilities of interactions between Neanderthal
Neanderthal
The Neanderthal is an extinct member of the Homo genus known from Pleistocene specimens found in Europe and parts of western and central Asia...

 and modern Cro-Magnon
Cro-Magnon
The Cro-Magnon were the first early modern humans of the European Upper Paleolithic. The earliest known remains of Cro-Magnon-like humans are radiometrically dated to 35,000 years before present....

 humans
Homo (genus)
Homo is the genus that includes modern humans and species closely related to them. The genus is estimated to be about 2.3 to 2.4 million years old, evolving from australopithecine ancestors with the appearance of Homo habilis....

.
The novel references the "coming" advance of "the polar ice" sheets
Polar ice cap
A polar ice cap is a high latitude region of a planet or natural satellite that is covered in ice. There are no requirements with respect to size or composition for a body of ice to be termed a polar ice cap, nor any geological requirement for it to be over land; only that it must be a body of...

, setting the story before 18,000 years Before Present
Before Present
Before Present years is a time scale used in archaeology, geology, and other scientific disciplines to specify when events in the past occurred. Because the "present" time changes, standard practice is to use AD 1950 as the origin of the age scale, reflecting the fact that radiocarbon...

, when the farthest southern encroachment of the last glacial period of the current Ice Age
Ice age
An ice age or, more precisely, glacial age, is a generic geological period of long-term reduction in the temperature of the Earth's surface and atmosphere, resulting in the presence or expansion of continental ice sheets, polar ice sheets and alpine glaciers...

 occurred.
 
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