Examlex
Stone tools typically survive very poorly in the archaeological record,and stone artifacts rarely date from before 5000 years ago.
Altruistic Behavior
Actions by an individual that benefit others at its own expense, often observed in the social behavior of animals.
Chemical Communication
The use of chemical signals for information exchange between organisms, critical for processes like pollination and mating.
Scent Trail
A path marked by the smell left by the passage of an animal or person, often used by animals for navigation and hunting.
Classical Conditioning
A learning process that occurs when two stimuli are repeatedly paired; a response that is at first elicited by the second stimulus is eventually elicited by the first stimulus alone.
Q13: Although variable according to population,a number of
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Q38: Paleolithic cave art is made in a