Vivid colors have evolved in many animal species as signal of quality to attract female partners. In sailfin tetra, conspicuous males are also under high risk of predation. In response, they rely on cautious strategies and better spatial cognition skills.
📄 Pinto et al (2021) Attractive males are cautious and better learners in the sailfin tetra. Animal Behaviour 172:103–111 dx.doi.org/10.1016/j.anbehav.2

composition determines social learning pathways within shoaling .
📄 Hasenjager et al (2020) Proceedings of the Royal Society B: Biological Sciences 287:20201871 dx.doi.org/10.1098/rspb.2020.1

In front of puzzle boxes, wild cockatoo are as smart as captive ones, but far less interested in these lab toys.
📄 Rössler et al (2020) Using an Innovation Arena to compare wild-caught and laboratory Goffin’s cockatoos. Scientific Reports 10:1–12 dx.doi.org/10.1038/s41598-020-

Emotional reactivity predicts cognitive performance in a species.
📄 Gibelli et al. (2019) Individual differences in anxiety are related to differences in learning performance and cognitive style. Animal Behaviour 157:121–128 dx.doi.org/10.1016/j.anbehav.2

Integrating animal behaviour and conservation ecology: a very complete bunch of reviews by some of the most influential specialists from the field.
🔗 royalsocietypublishing.org/toc

Sense of in : a new study from the impressive Toulouse research group on animal .
📄 Bortot et al. (2019) Honeybees use absolute rather than relative numerosity in number discrimination. Biology Letters 15:20190138 dx.doi.org/10.1098/rsbl.2019.0

Emotional contagion in : experiments based on judgement bias paradigm showed that exhibited bias after perceiving demonstrators in a negative state.
📄 Adriaense et al. (2019) Negative emotional contagion and cognitive bias in common ravens (Corvus corax). PNAS 116:11547–11552 dx.doi.org/10.1073/pnas.181706

Since recent studies recently accumulated evidences for sophisticated in , we must now improve our ethical practices and reconsider the use of these species in our experimental procedures.
📄 Drinkwater et al. (2019) Keeping invertebrate research ethical in a landscape of shifting public opinion. Methods in Ecology and Evolution dx.doi.org/10.1111/2041-210X.1

Elizabeth Tibbetts, who was the first one to evidence facial recognition in , strikes again with a nice paper about transitive inference in .
📄 Tibbetts et al. (2019) Biology Letters 15:20190015 dx.doi.org/10.1098/rsbl.2019.0

without a : the non-neural is able to long-term to sodium, and this is preserved accross the dormant stage.
📄 Boussard et al (2019) Memory inception and preservation in slime moulds: the quest for a common mechanism. Phil. Trans. R Soc. B 374:20180368 dx.doi.org/10.1098/rstb.2018.0

Too much of a good thing: paradox and cognitive cost in foraging .
📄 Austin et al. (2019) Choice in a floral marketplace: the role of complexity in bumble bee decision-making. Behavioral Ecology 30:500–508 dx.doi.org/10.1093/beheco/ary1

without ? Public research seminar by Audrey Dussutour about "Habituation in non neural organisms, evidence from slime molds", Tuesday 18th december, university of Burgundy, Dijon, France.
🔗 biogeosciences.u-bourgogne.fr/

While I am still a great fan of Kahneman's best seller "Thinking, fast and slow" (2011), here are refreshing views about the pervasive presentation of making processes based on two orthogonal systems: type I (fast, unconscious, automatic, error prone) vs. type II (slow, conscious, costly, reliable).
📄 Melnikoff & Bargh (2018) The mythical number two. Trends in Cognitive Sciences 22:280-293 dx.doi.org/10.1016/j.tics.2018

Number sense in : fascinating evolutionary implications since the divergence between fishes and vertebrates dates back 450 million years. Agrillo & Bisazza 2018. Understanding the origin of number sense: a review of fish studies. Philosophical Transactions of the Royal Society B: Biological Sciences 373:20160511 rstb.royalsocietypublishing.or in a great special issue by Phil.Trans.R.Soc.