ManyDogs Project: A Big Team Science Approach to Investigating Canine Behavior and Cognition

Dogs have a special place in human history as the first domesticated species and play important roles in many cultures around the world. However, their role in scientific studies has been relatively recent. With a few notable exceptions (e.g., Darwin, Pavlov, Scott, and Fuller), domestic dogs were not commonly the subject of rigorous scientific investigation of behavior until the late 1990s. Although the number of canine science studies has increased dramatically over the last 20 years, most research groups are limited in the inferences they can draw because of the relatively small sample sizes used, along with the exceptional diversity observed in dogs (e.g., breed, geographic location, experience). To this end, we introduce the ManyDogs Project, an international consortium of researchers interested in taking a big team science approach to understanding canine behavioral science. We begin by discussing why studying dogs provides valuable insights into behavior and cognition, evolutionary processes, human health, and applications for animal welfare. We then highlight other big team science projects that have previously been conducted in canine science and emphasize the benefits of our approach. Finally, we introduce the ManyDogs Project and our mission: (a) replicating important findings, (b) investigating moderators that need a large sample size such as breed differences, (c) reaching methodological consensus, (d) investigating cross-cultural differences, and (e) setting a standard for replication studies in general. In doing so, we hope to address previous limitations in individual lab studies and previous big team science frameworks to deepen our understanding of canine behavior and cognition

Contrafreeloading in the Domestic Dog (Canis lupus familiaris)

Contrafreeloading is the behavior of working for food that requires effort to obtain when also provided with food that does not require effort to obtain. More specifically, contrafreeloading can be defined in multiple ways using various criterion such as 1) an animal’s preference and/or 2) an animal’s willingness to work for food when freely available food is offered. To date, multiple studies have evaluated contrafreeloading in various animal species, identifying that many non-domesticated species (e.g., maned wolves, red jungle fowl) and domesticated species (e.g., pigs, goats) demonstrate a preference and/or a willingness to work for food when readily available food is present. Most recently, Delgado et al., (2021) observed that domestic cats prefer freely available food over food that requires effort. In an adaptation of this research, we assessed whether another domesticated companion animal, dogs, contrafreeload when presented with two feeders simultaneously, a food puzzle (snuffle mat) and a tray. Thirty-eight pet dogs participated in the study in which they were presented with 10 feeding trials where food was distributed equally in both feeders. All dogs wore activity trackers for the duration of the study and feeding trials were video-recorded and behaviorally analyzed for first approaches to each feeder and time spent at each feeder. We also accounted for food eaten at each feeder. Overall, we did not find evidence of preference to contrafreeload behavior in domestic dogs, however we did find evidence of a willingness to contrafreeload. Dogs approached the tray before the snuffle mat most often. Willingness to contrafreeload was significantly correlated with owner reported body condition score (r (36) = 0.337, p = 0.039) but not activity level (r (34) = -0.259, p = 0.051). Our results could inform future recommendations for pet dog enrichment

ManyDogs Project: A Big Team Science Approach to Investigating Canine Behavior and Cognition

Dogs have a special place in human history as the first domesticated species and play important roles in many cultures around the world. However, their role in scientific studies has been relatively recent. With a few notable exceptions (e.g., Darwin, Pavlov, Scott, and Fuller), domestic dogs were not commonly the subject of rigorous scientific investigation of behavior until the late 1990s. While the number of canine science studies has increased dramatically over the last 20 years, most research groups are limited in the inferences they can draw due to the relatively small sample sizes used, along with the exceptional diversity observed in dogs (e.g., breed, geographic location, experience). To this end, we introduce the ManyDogs Project, an international consortium of researchers interested in taking a big team science approach to understanding canine behavioral science. We begin by discussing why studying dogs provides valuable insights into behavior and cognition, evolutionary processes, human health, and applications for animal welfare. We then highlight other big team science projects that have previously been conducted in canine science and emphasize the benefits of our approach. Finally, we introduce the ManyDogs Project and our mission: (1) replicating important findings, (2) investigating moderators that need a large sample size such as breed differences, (3) reaching methodological consensus, (4) investigating cross-cultural differences, and finally (5) setting a standard for replication studies in general. In doing so, we hope to address previous limitations in individual lab studies and previous big team science frameworks to deepen our understanding of canine behavior and cognition

ManyDogs Project: A Big Team Science Approach to Investigating Canine Behavior and Cognition

Dogs have a special place in human history as the first domesticated species and play important roles in many cultures around the world. However, their role in scientific studies has been relatively recent. With a few notable exceptions (e.g., Darwin, Pavlov, Scott, and Fuller), domestic dogs were not commonly the subject of rigorous scientific investigation of behavior until the late 1990s. Although the number of canine science studies has increased dramatically over the last 20 years, most research groups are limited in the inferences they can draw because of the relatively small sample sizes used, along with the exceptional diversity observed in dogs (e.g., breed, geographic location, experience). To this end, we introduce the ManyDogs Project, an international consortium of researchers interested in taking a big team science approach to understanding canine behavioral science. We begin by discussing why studying dogs provides valuable insights into behavior and cognition, evolutionary processes, human health, and applications for animal welfare. We then highlight other big team science projects that have previously been conducted in canine science and emphasize the benefits of our approach. Finally, we introduce the ManyDogs Project and our mission: (a) replicating important findings, (b) investigating moderators that need a large sample size such as breed differences, (c) reaching methodological con-sensus, (d) investigating cross-cultural differences, and (e) setting a standard for replication studies in general. In doing so, we hope to address previous limitations in individual lab studies and previous big team science frameworks to deepen our understanding of canine behavior and cognition