The present research examines the consumption, treatment, and disposal of the human placenta in a sample of 179 societies. The findings reveal differences between placental mammals and humans as maternal placentophagy, the consumption of the placenta, is rare. Treatment and disposal of the placenta is variable but ubiquitous cross-culturally.

The present research examines the consumption, treatment, and disposal of the human placenta in a sample of 179 societies. The findings reveal differences between placental mammals and humans as maternal placentophagy, the consumption of the placenta, is rare. Treatment and disposal of the placenta is variable but ubiquitous cross-culturally.

The present research examines the consumption, treatment, and disposal of the human placenta in a sample of 179 societies. The findings reveal differences between placental mammals and humans as maternal placentophagy, the consumption of the placenta, is rare. Treatment and disposal of the placenta is variable but ubiquitous cross-culturally.

Using a sample of 60 societies from eHRAF, this study explores the cross-cultural commonalities and differences in human-pet dynamics. The authors focus on understanding the range of functions of pets and the positive or negative treatment of pets. In addition, they test whether human investment in pets is a significant challenge of evolutionary theory. First, the results support that there are distinct functions of pets, challenging the common view of contemporary function of pets as emotional surrogates. Secondly, the data collected show an ambivalent treatment of pets across cultures, including small-scale societies. Finally, the research does not support the idea that human investment in pets sacrifices their reproductive success.

Using a sample of 60 societies from eHRAF, this study explores the cross-cultural commonalities and differences in human-pet dynamics. The authors focus on understanding the range of functions of pets and the positive or negative treatment of pets. In addition, they test whether human investment in pets is a significant challenge of evolutionary theory. First, the results support that there are distinct functions of pets, challenging the common view of contemporary function of pets as emotional surrogates. Secondly, the data collected show an ambivalent treatment of pets across cultures, including small-scale societies. Finally, the research does not support the idea that human investment in pets sacrifices their reproductive success.

Using a sample of 60 societies from eHRAF, this study explores the cross-cultural commonalities and differences in human-pet dynamics. The authors focus on understanding the range of functions of pets and the positive or negative treatment of pets. In addition, they test whether human investment in pets is a significant challenge of evolutionary theory. First, the results support that there are distinct functions of pets, challenging the common view of contemporary function of pets as emotional surrogates. Secondly, the data collected show an ambivalent treatment of pets across cultures, including small-scale societies. Finally, the research does not support the idea that human investment in pets sacrifices their reproductive success.

This article explores biological, psychological, and social explanations for menstrual taboos. Attention is paid to the role of men in rituals associated with reproduction--i.e. before, during and after childbirth, as well as during girls' puberty rites.

Aiming to respond to the question "How has knowledge in forager oral narrative been maintained accurately for dozens of generations?", this study explores the myth transmission rules among forager societies. The first hypothesis anticipates that these rules constrain transmission and contexts similarly across forager societies. The authors suggest that these rules are information technology aids to minimize the chances of errors and loss of information. Related to this, the authors formulate eight hypotheses of what these rules will mandate during myth transmission: 1) skilled storytellers to pass down stories, 2) minimal low-distractions, 3) numerous people 4) multiple generations, 5) measures that identify and correct mistakes, 6) measures that maintain the audience's attention, 7) measures that sanction rule violations, and 8) measures that encourage rule compliance. There is enough evidence to support 7 out of the total of 9 hypotheses. These results show the relevance of studying the rules concerning myth and knowledge transmission across generations.

Aiming to respond to the question "How has knowledge in forager oral narrative been maintained accurately for dozens of generations?", this study explores the myth transmission rules among forager societies. The first hypothesis anticipates that these rules constrain transmission and contexts similarly across forager societies. The authors suggest that these rules are information technology aids to minimize the chances of errors and loss of information. Related to this, the authors formulate eight hypotheses of what these rules will mandate during myth transmission: 1) skilled storytellers to pass down stories, 2) minimal low-distractions, 3) numerous people 4) multiple generations, 5) measures that identify and correct mistakes, 6) measures that maintain the audience's attention, 7) measures that sanction rule violations, and 8) measures that encourage rule compliance. There is enough evidence to support 7 out of the total of 9 hypotheses. These results show the relevance of studying the rules concerning myth and knowledge transmission across generations.

Aiming to respond to the question "How has knowledge in forager oral narrative been maintained accurately for dozens of generations?", this study explores the myth transmission rules among forager societies. The first hypothesis anticipates that these rules constrain transmission and contexts similarly across forager societies. The authors suggest that these rules are information technology aids to minimize the chances of errors and loss of information. Related to this, the authors formulate eight hypotheses of what these rules will mandate during myth transmission: 1) skilled storytellers to pass down stories, 2) minimal low-distractions, 3) numerous people 4) multiple generations, 5) measures that identify and correct mistakes, 6) measures that maintain the audience's attention, 7) measures that sanction rule violations, and 8) measures that encourage rule compliance. There is enough evidence to support 7 out of the total of 9 hypotheses. These results show the relevance of studying the rules concerning myth and knowledge transmission across generations.