Using the comparative approach, researchers draw inferences about the evolution of
cognition. Psychologists have postulated several hypotheses to explain why certain species …

The last several decades of research on avian cognition have revealed surprising parallels
between the abilities of birds—most notably corvids—and great apes. Parrots, albeit far less …

Cumulative technological culture (CTC) refers to the increase in the efficiency and
complexity of tools and techniques in human populations over generations. A fascinating …

Jacobs et al.[1] raise some interesting and important questions about our recent paper in
which New Caledonian crows were unable to design a novel causal intervention [2]. These …

We investigated whether nonhuman great apes (N= 23), 2.5-year-old (N= 20), and 3-year-
old children (N= 40) infer causal relations from patterns of variation and covariation by …

The commentaries have both revealed the implications of and challenged our approach. In
this response, we reply to these concerns, discuss why the technical-reasoning hypothesis …

This commentary draws connections between technological culture emergence and recent
trends in using assistive technology to reduce the burden of Alzheimer's disease. By the …

One goal of comparative cognitive studies is to achieve a better understanding of the
selective pressures and constraints that play a role in cognitive evolution. This chapter …

The ability to reason about causality underlies key aspects of human cognition, but the
extent to which non-humans understand causality is still largely unknown. The Aesop's …

The New Caledonian crow may be the only non-primate species exhibiting cumulative
technological culture. Its foraging tools show clear signs of diversification and progressive …