The morphology, swimming kinematics and prey selection of hydromedusae have been shown to be closely related to hydromedusan foraging mode. In order to confirm this link, we examined the in situ foraging behavior of hydromedusae by video-recording and quantifying the in situ swimming activity and tentacle-extension behavior of 8 co-occurring hydromedusae from the waters surrounding Friday Harbo...

Plenty is being written about predatory publishers (Clark & Thompson, 2017; Pickler et al., 2015) but little is being done to stop them. The one valiant effort to expose them: Beall’s List of Predatory publishers, has been forcibly removed from the Internet (Watson, 2017a), and while someone else has made the list available online (http://beallslist. weebly.com/; accessed 18 September 2017), th...

Article history: Received 8 December 2015 Received in revised form 26 July 2016 Accepted 17 September 2016 Available online 20 September 2016 Manipulative experiments are rarely possible with large predatory mammals. However, field manipulations of predatory arthropods are common and could provide general insights into top-predator impacts. For example, observational studies suggest that conser...

The effects of brief daily separation, also known as "handling," during the first 2 weeks of life on play behavior and fearfulness toward a predatory odor were assessed in juvenile rats. Handled rats were more playful than nonhandled control rats, and while handling had no effect on the direct response of these rats toward a predatory odor, handled rats did not exhibit a conditioned suppression...

The rapid rise of predatory journals—publications taking large fees without providing robust editorial or publishing services—has created what some have called an age of academic racketeering. Predatory journals recruit articles through aggressive marketing and spam emails, promising quick review and open access publication for a price. There is little if any quality control and virtually no tr...

The impact of the insecticide, Synergy-505 (chlorpyrifos 50% and cypermethrin 5% E.C), on the functional response, predatory behavior, and mating behavior of a non-target reduviid, Rhynocoris marginatus (Fabricius) (Hemiptera: Reduviidae), a potential biological control agent, were studied. Though both normal and Synergy-505-exposed R. marginatus exhibited Holling's type II curvilinear function...

Predatory behavior in wild chimpanzees and other primates has been well documented over the last 30 years. However, as it is an opportunistic behavior, conditions which may promote such behavior are left up to chance. Until now, predatory behavior among captive chimpanzees has been poorly documented. In this paper, we present five instances providing evidence of predatory behavior: four perform...

Taking the hunt as both metaphor of rule and political practice, this paper compares the predatory exercises of two imperial formations in India: the late British Raj and the sixteenth-century Mughal empire. The British pursuit of man-eaters confronted feline terror with sovereign might, securing the bodies and hearts of resistant subjects through spectacles of responsible force. The Mughal hun...

Despite recent progress, the causes and pathophysiology of post-traumatic stress disorder (PTSD) remain poorly understood, partly because of ethical limitations inherent to human studies. One approach to circumvent this obstacle is to study PTSD in a valid animal model of the human syndrome. In one such model, extreme and long-lasting behavioral manifestations of anxiety develop in a subset of ...

The present study was carried out in five cats which did not attack the rats spontaneously. Predatory attack on an anaesthetized rat was elicited by electrical stimulation of extreme lateral regions of hypothalamus. These sites were stimulated at a current strength from 300-700 microa to evoke a predatory attack on an anaesthetized rat. The attack was accompanied by minimal affective display su...