Far more attention is paid to dog behavior than to cat behavior. So I was struck by a recent report in Plos One from a trio of researchers at the Wildlife Research Center of Kyoto University that probes the "association between androgen receptor gene and behavioral traits in cats (Felis catus)." "Through our research, we hope to deepen our understanding of cats and contribute to building happier relationships between cats and humans," said first author Yume Okamoto.
The paper is about purring and meowing, which I can attest are related and highly variable characteristics of cats.
Consider, for example, Archie Lewis. He commonly chatters and howls as he leaps about, ceasing only when a human, such as my daughter Carly, pays attention to him. Archie was in fact rehomed twice, before his current residence, because he wouldn't shut up. Archie is now training an adopted sister, Josephine, so Carly is carefully observing any teaching moments that might be transpiring.