Cellular cannibalism has been defined as a large cell engulfing a slightly smaller one within its cytoplasm. It has been described in various cancers like bladder cancer, breast cancer, lung cancer, gastric cancer, oral squamous cell carcinoma. Cellular cannibalism has been well correlated with anaplasia, tumor aggressiveness, grading and metastatic potential. Present review focuses on signific...

Theory and empirical studies suggest that cannibalism in age-structured populations can regulate recruitment depending on the intensity of intraspecific competition between cannibals and victims and the nature of the cannibalism window, i.e., which size classes interact as cannibals and victims. Here we report on a series of experiments that quantify that window for age-structured populations o...

This essay discusses the image and practice of cannibalism in a wide range of studies. It also presents the anthropological research on kuru which led to the proposal that cannibalism had enabled transmission of the infectious agent, as well as doubts about the hypothesis, and the assertion by some that cannibalism as a socially approved custom did not exist. The figure of the cannibal as an ic...

Keywords: accuracy cannibalism competition earwig Forficula auricularia group size kin recognition siblicide temporal dynamics In group-living or social species intraspecific predation and cannibalism can lead to substantial decreases in inclusive fitness because related individuals may encounter one another. Therefore, selection on the ability and accuracy of kin recognition to avoid losses in...

The incidence of sibling cannibalism in clutches of Harmonia axyridis infected by the male-killing Spiroplasma was compared with that in uninfected clutches, and the way in which fitness compensation was realized by sibling cannibalism was investigated. Primarily the rate of sibling cannibalism was determined by the hatching rate as all unviable eggs were consumed both in infected and uninfecte...

Abstract Precopulatory sexual cannibalism—or cannibalism without mating—is expected to promote the evolution of male strategies that enhance mating success and reduce risk cannibalism, such as preferentially approaching feeding females. Sexual selection on competitiveness has potential alter decisions in face risk, but effects are poorly understood. We investigated effect prey availability male...

Cannibalism is ubiquitous in natural communities and has the potential to alter the functional relationship of predator–prey interactions. Although cannibalistic species are frequently subject to predation, the consequences of cannibalism in the prey for predator–prey interactions are poorly understood. Using a dragonfly larvae system, I provide the first experimental evidence that cannibalism ...

Many cyclopoid copepods change their feeding habits during development. Young stages are herbivorous, whereas adults are carnivores or omnivores. A demographic model based on physiological parameters is developed to study the effect of cannibalism on the population dynamics of cyclopoids and their prey. If alternative prey are available and their potential growth rate is higher than the potenti...

Benefits of size dimorphism and copulatory silk wrapping in the sexually cannibalistic nursery web spider, Pisaurina mira" (2016). Eileen Hebets Publications. Paper 54. For most males, reproductive success is dependent on the ability to acquire mates and successfully fertilize a female's eggs [1,2]. Research across diverse animal taxa has documented elaborate courtship displays and seemingly co...

In this paper we build a prey-predator model with discrete weight structure for the predator. This model will conserve the number of individuals and the biomass and both growth and reproduction of the predator will depend on the food ingested. Moreover the model allows cannibalism which means that the predator can eat the prey but also other predators. We will focus on a simple version with two...