<< Parrots can learn to choose based on probability, making them the first animal outside of the great ape family that uses statistical modelling in their decision-making process, >>
<< What was most surprising is that they can integrate social or physical information into their probabilistic judgements, >> Amalia Bastos.
Parrots get probability, use stats to make choices: study. Mar 3, 2020.
https://m.phys.org/news/2020-03-parrots-probability-stats-choices.html
Amalia P. M. Bastos, Alex H. Taylor. Kea show three signatures of domain-general statistical inference. Nature Communication. Volume 11, Article number: 828. Mar 3, 2020.
https://www.nature.com/articles/s41467-020-14695-1
Also
<< Insects are able to solve basic numerical cognition tasks >>
Hannes Rapp, Martin Paul Nawrot, Merav Stern. Numerical Cognition Based on Precise Counting with a Single Spiking Neuron. iScience. Volume 23, Issue 2, 100852. doi: 10.1016/j.isci.2020.100852. Jan 21, 2020.
https://www.cell.com/iscience/fulltext/S2589-0042(20)30035-3
Quantifying objects: Bees recognize that six is more than four. University of Cologne. Mar 2, 2020.
https://m.phys.org/news/2020-03-quantifying-bees.html