منابع مشابه
The Smell of Fear
For many of us, when faced with a dangerous situation, our first reaction might be to yell and scream or in some way vocally communicate the danger to others. However, unbeknownst to us, we are also likely communicating the danger in a more subtle way. Plants and animals have evolved a highly specialized mechanism for alerting their own kind to the presence of a predator, injury or stress. The ...
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Assistive technology suitability is extremely dependent on users and their needs. We understand that assistive technology and computer assisted therapy applications, in order to evolve from a stage of prototypes to commercial products, need to be evaluated with users. However, if users are unable to express their opinion, many usability evaluation methods cannot be applied. Our experience with ...
متن کاملRollers smell the fear of nestlings.
Many animals react to danger by producing chemical cues that can be smelled by others, which is called the smell of fear. Some bird species produce chemical compounds when threatened, such as nestlings of the Eurasian roller Coracias garrulus that vomit an odorous orange liquid when scared in their nests. Here, we experimentally explore the possibility that parents were informed about recent pr...
متن کاملBroilers (Gallus gallus) are less stressed if they can smell a mother odorant
Performance, physiological and behavioural parameters of two groups of domestic chickens were compared. Chickens were raised in classical commercial conditions in buildings housing 12000 birds. One group acted as a control, while the environment of the other was perfused with MHUSA (Mother Hens’ Uropygial Secretion Analogue), a synthetic analogue of a mother-hen odorant secretion which has show...
متن کاملPheromone components and active spaces: what do moths smell and where do they smell it?
The pheromone-mediated flight behavior of male Oriental fruit moths was observed in the field to test the hypothesis that male activation far downwind of a female is initiated by the major, or most abundant, component of the pheromone blend. Males responded at significantly greater distances to the three-component pheromone blend produced by females than to the major component alone or to eithe...
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ژورنال
عنوان ژورنال: Science
سال: 2017
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.358.6363.605-d