GAVNet Collaborative Curation

Hunger is surging in the heart of the breadbasket, showing just how dire the problem has become during the pandemic.

If a COVID-19 vaccine went on the market before Election Day, Kamala Harris said she's not sure she'd take it. And she's not alone. In a recent poll, a majority of Americans - 62 percent - said they were worried that the Trump administration would pressure the Food and Drug Administration to release a vaccine before it's ready, and 54 percent said they simply wouldn't take that hypothetical vaccine at all, even if it were free.

For decades, scientists have been using a classical experimental search task-which involves placing a single rat in a complex maze to search for a reward-to deepen understanding of navigation, memory, and learning. However, rats are highly social animals that build and live in complex burrow systems in nature. Yet very little is known about how they explore as a group. In the new study, researchers from institutes in Germany and Hungary turned the classical experimental search task into the first experimental study on rodent group search behavior in a confined maze.

People feel they understand complex phenomena with far greater precision, coherence, and depth than they really do; they are subject to an illusion-an illusion of explanatory depth. The illusion is far stronger for explanatory knowledge than many other kinds of knowledge, such as that for facts, procedures or narratives. The illusion for explanatory knowledge is most robust where the environment supports real-time explanations with visible mechanisms. We demonstrate the illusion of depth with explanatory knowledge in Studies 1-6. Then we show differences in overconfidence about knowledge across different knowledge domains in Studies 7-10. Finally, we explore the mechanisms behind the initial confidence and behind overconfidence in Studies 11 and 12. Implications for the roles of intuitive theories in models of concepts and cognition are discussed.

Actions taken to mitigate the threats of coronavirus disease 2019 (COVID-19) to human life and welfare have inadvertently resulted in a natural experiment offering unanticipated insight into how human behavior affects animal behavior (1). Worldwide, elective quarantine and stay-at-home orders have reduced use of public spaces and transportation networks, especially in cities. Anecdotal media accounts suggest that restricted movement has elicited rarely observed behaviors in commensal and peri-urban animals (2). Though not all of the reports have proven to be accurate (3), widely publicized observations like coyotes crossing the normally heavily trafficked Golden Gate Bridge in the San Francisco (SF) Bay Area (California, USA) have provoked widespread fascination with the prospect that animals rapidly move back into landscapes recently vacated by humans.

Isomorphism