Tag: "versa" at biology news
The higher the hierarchy, the greater the aggression
...g that aggression depends on rank rather than vice versa
and that particularly high levels of aggression are used by newly promoted dominants to establish their status. "We found that rates of both aggressive 'displays' (aimed at individuals of lower rank) and aggressive 'tests' (aimed at individuals of hi...
Birds found to plan for the future
...o cache peanuts in the kibble compartment and vice versa
?to make sure they had an interesting breakfast the following morning. “The jays spontaneously plan for tomorrow, without being motivated by their current needs? said Nicola Clayton, Professor of Comparative Cognition at the University of Cambridg...