Resource availability often determines the intensity of cannibalism, which has a considerable effect on population size distribution and individual life history. Larvae of the caddisfly Psilotreta kisoensis build portable cases from sedimentary sands and often display cannibalism. For this species, the availability of preferable case material is a critical factor that affects larval fitness, an...

In natural populations, courting males of Araneus diadematus are often consumed by females before they have successfully copulated. Despite the possible nutritional benefits of sexual cannibalism for females, the male can derive no benefit by being consumed before copulation. In this study, females that consumed a single male significantly increased their body mass, regardless of the quality of...

Models of the evolution of sexual cannibalism argue that males may offset the cost of cannibalism if components of the male body are directly allocated to the eggs that they fertilize. We tested this idea in the praying mantid Tenodera sinensis Males and females were fed differently radiolabelled crickets and allowed to mate. Half of the pairs progressed to sexual cannibalism and we prevented c...

Cannibalism as a topic of interest, both general and anthropological, has seen a revival of concern in the last seven years or so. Primarily responsible for this revival is the controversial stance taken by William Arens in his book, The ManEating Myth: Anthropology and Anthropophagy (1979). Following the publication of this work has been a deluge of articles and books, popular and specialized,...

In this paper, we discuss the concept of"choice" in filial care work. A dichotomy between choice and obligation is constructed in theoretical and empirical literature on filial care work. However, this dichotomy does not adequately reflect family caregiving experiences; for instance, choice and obligation are not mutually exclusive motivations. Rather, choice and obligation are "relational" and...

Filial piety, though diminishing in influence, remains the most important value regulating the behaviour of children towards their elderly parents and relatives in Asian Chinese communities and communities influenced by Chinese culture. Long-term care policies in Asian Chinese communities must recognise the changes that have taken place in the practice of filial piety, though neither a complete...

In natural populations, courting males of Araneus diadematus are often consumed by females before they have successfully copulated. Despite the possible nutritional benefits of sexual cannibalism for females, the male can derive no benefit by being consumed before copulation. In this study, females that consumed a single male significantly increased their body mass, regardless of the quality of...

This study investigated whether cultural justification or filial piety had a higher applicability to cultural values that affect care-giving behavior in the Korean cultural context. Ultimately, cultural justification, rather than filial piety, showed to have a greater effect on care-giving behavior of married children in Korea.

PRO: Because myoglobin comes only from heart and skeletal muscle, myoglobin was not detected in 20 'control' faeces from other Puebloan archaeological sites, nor in modern faeces from 29 healthy individuals and 10 patients with blood in their faeces. The myo-globin-specific antibody used does not detect the related blood protein haemoglobin 1. CON: Okay, you've proved one case of cannibalism, b...

In natural populations, courting males of Araneus diadematus are often consumed by females before they have successfully copulated. Despite the possible nutritional benefits of sexual cannibalism for females, the male can derive no benefit by being consumed before copulation. In this study, females that consumed a single male significantly increased their body mass, regardless of the quality of...