Please help contribute to the Reddit categorization project here

    QuietCakeBionics

    + friends - friends
    988,591 link karma
    43,101 comment karma
    send message redditor for

    [–] The moment 7 chimps are released into a sanctuary after almost 40 years of medical testing QuietCakeBionics 1580 points ago * (lasted edited 2 days ago) in gifs

    Yeah I read that they do have some psychological issues. One of the chimps doesn't like to stay outside too long and one of the other chimps walks back with her to the interior living area when they notice she's getting agitated. Another chimp Foxie is obsessed with troll dolls and treats them like babies, they think it might be to do with her babies being taken off her in the lab.

    Edit: Picture of Foxie with one of her troll dolls: https://i.imgur.com/1Qc20xy.jpg

    [–] The moment 7 chimps are released into a sanctuary after almost 40 years of medical testing QuietCakeBionics 1154 points ago in gifs

    The name of the sanctuary is Chimpanzee Sanctuary Northwest.

    Link if you want to read the chimp's stories and how they are getting on:

    https://chimpsnw.org/chimpanzees/

    [–] Cow just wants someone to play with QuietCakeBionics 2 points ago in gifs

    Is that full length gif loading okay for you?

    [–] Is Heightened-Shoaling a Good Candidate for Positive Emotional Behavior in Zebrafish? QuietCakeBionics 2 points ago in FishCognition

    Simple Summary

    Despite increasing interest in fish welfare, we still know very little about positive emotions in fish.

    This study had two aims: (1) to characterize a previously undescribed social behavior in zebrafish, “heightened-shoaling”, and (2) to evaluate whether heightened-shoaling may be a good candidate for future research into positive emotional behavior in zebrafish.

    Observing six groups of zebrafish housed in 110 L tanks furnished with a sloping gravel substrate, rocks, and artificial plants (10 fish/tank), we found that heightened-shoaling is marked by tight group cohesion, high behavioral synchrony (all fish engaging in the same behaviors at the same time), and low agonism.

    Episodes of heightened-shoaling occurred in all six groups, but rarely at the same time (only once out of 31 episodes), suggesting that the onset of heightened-shoaling is driven by internal group dynamics rather than external influences.

    Heightened-shoaling also appeared to be self-reinforcing as it had sustained durations—typically lasting for over 7 min and sometimes lasting for nearly half-an-hour. Collectively, these results are similar to the patterns that typify positive emotional behavior in other animals, for example, social grooming and social play.

    As the first description of heightened-shoaling, this research extends our knowledge of the range of zebrafish social dynamics and suggests a promising area for future research on positive emotions in fish.

    Abstract

    Zebrafish, a highly-social species of freshwater fish, are widely studied across many fields of laboratory science including developmental biology, neuroscience, and genomics. Nevertheless, as standard housing for zebrafish typically consists of small and simplistic environments, less is known about their social behavioral repertoire in more naturalistic settings. In particular, spontaneously occurring, socio-positive affiliative behaviors (e.g., social coordination and cohesion) that may be indicative of positive emotional experiences have rarely been reported or studied deliberately in zebrafish. Housing adult zebrafish (10 fish/tank) in large semi-natural tanks (110 L; n = 6) with sloping gravel substrate, rocks, and artificial plants, we observed a previously undescribed behavior: Distinct periods of spontaneous, synchronized, compact aggregations, what we call “heightened-shoaling”. This project aimed to quantify the characteristics of this distinctive behavior and compare parameters of heightened-shoaling to baseline periods (normal behavior) and pre-feed periods (feed-anticipatory behavior). First, across 4 days, we selected video-clips (100 s each) from within (i) instances of heightened-shoaling (n = 9), (ii) baseline periods (n = 18), and (iii) pre-feed periods (n = 18). For each of these video clips, we scan sampled every 10 s to determine fish orientations and location within the tank and agonistic behavior. Next, we used an all-occurrence sampling method to record the timing and duration of all episodes of heightened-shoaling behavior when tank-lights were on (8:00 h to 18:00 h) across 10 days. From the scan-sampling data, we found that compared to baseline periods, heightened-shoaling was characterized by increased shoal cohesion (p < 0.0001), increased adherence to the horizontal plane (p < 0.0001), decreased agonism (p < 0.0001), and no diving behavior (lower positions within the water column signal negative effect in zebrafish, p > 0.1). From the all-occurrence sampling data, we found 31 episodes of heightened-shoaling with instances observed in all six tanks and only a single case in which heightened-shoaling occurred in two tanks at the same time. The median episode duration was 7.6 min (Range 1.3–28.6). As the first systematic description of heightened-shoaling behavior, this research contributes to our knowledge of the range of zebrafish social dynamics living in naturalistic environments. Moreover, as a spontaneously occurring, protracted, affiliative behavior, heightened-shoaling appears to be a good candidate for future research into positive emotional behavior in zebrafish.

    [–] Fish are smart and feel pain: What about joy? QuietCakeBionics 2 points ago in likeus

    Abstract

    Sneddon et al. rightly point out that the evidence of fish pain is now so strong and comprehensive that arguments against it have become increasingly difficult to defend in balanced academic discourse. But sentience involves more than just pain. Recent research indicates that fish have an impressive range of cognitive capacities, including the capacity for pleasure, in the form of play and other behaviors likely to involve positively valenced experience. Having made the case for pain, research can now focus on other aspects of fish sentience. Doing so will not only provide a more complete picture of the mental lives and abilities of fish, but it will also promote their welfare and protection.