Cannibalistic Signals Help Mammalian Embryos Develop Normally

... A process called autophagy spurs dying embryonic stem cells to send cannibalistic signals to have their corpses purged, a last gasp that paves the way for normal mammalian// development. Autophagy is the way cells devour their...

New Study Questions Cannibalism As A Worldwide Selective Force

...'-like diseases have not been a major force in human history, nor have been cannibalistic rituals that are known to be associated with disease transmission.// I...ly resistant to the disease. Over time, homozygotes who participated in the cannibalistic rituals purportedly decreased in number due to their increased susceptibili...

Cannibalistic in Biological News

What's bugging locusts?

...other live locusts or cadavers. This behavior and its effect upon the group, however, have not previously been studied. "No one knew until now that cannibalistic interactions are directly responsible for the collective motion exhibited by these bands," added Couzin, whose graduate student, Sepideh Bazazi, is th...

Ancient ecosystems organized much like our own

... who was eating whom by piecing together a variety of clues. There was the occasional smoking gun, such as fossilized gut contents in the carnivorous, cannibalistic priapulid worm Ottoia prolifica. However, in most cases, feeding interactions were inferred from where species lived and what body parts they had. For...

The best both of worlds -- how to have sex and survive

...es of both sexes are different from the norm and this is important in understanding the evolution of their mate choice behaviour. Large males are more cannibalistic towards smaller females than vice versa. Consequently, virgin females prefer larger males as mates, in spite of the increased risk of cannibalism, but...

Why do oysters choose to live where they could be eaten?

...ecision. According to an article in the May edition of Ecological Monographs, a team of scientists has found that despite the risk of being eaten by cannibalistic adults, oyster larvae choose to settle in areas of high oyster concentrations to take advantage of future benefits of increased reproductive capacity ...

A rarity among arachnids, whip spiders have a sociable family life

...er. They are constantly exploring one another and interacting with their siblings." Scientists have long thought these creatures were solitary and cannibalistic predators, as past studies have focused mainly on the adult's dramatic courtship and fighting behaviors. Rayor believes that because young amblypygids...

Scientists find method to pick noncompetitive animals, improve production

...the breeding of domesticated animals," Muir said. "The tool also could allow us to domesticate more species as readily available food sources, such as cannibalistic shellfish and game fish." ...

History of human cannibalism eats away at researchers

...'-like diseases have not been a major force in human history, nor have been cannibalistic rituals that are known to be associated with disease transmission. Prof. J...y resistant to the disease. Over time, homozygotes who participated in the cannibalistic rituals purportedly diminished in numbers due to their increased susceptibi...

Cannibalistic in Biological Definition

Prion

...sified under transmissible spongiform encephalopathy diseases (TSEs) , including scrapie (a disease of sheep ), kuru (found in members of the cannibalistic For tribe in Papua New Guinea ), Creutzfeldt-Jakob disease (CJD), Chronic Wasting Disease , and bovine spongiform encephalopathy (mad cow di...