Fear-Related Behaviour in Two Mouse Strains Differing in Litter Size
The present experiment compared the fear-related behaviour of a mouse strain selected over 101 generations for high litter size with that of a randomly selected strain. The H-strain, selected for large litter size, has a mean (± SD) litter size at birth of 21.5 ± 3.5 pups. The randomly bred C-strain has a mean (± […]
Differential foraging strategies: motivation, perception and implementation in urban free-ranging dogs, Canis familiaris
Animals exhibit intraspecific variation in foraging behaviour when alternative strategies are likely to fetch greater returns for one individual over another. The mechanisms underlying such variation are often behavioural, physiological or ecological in nature. We studied intraspecific variation in foraging strategies and its possible causes in a population of urban free-ranging dogs by accounting for […]
Indo-Pacific parrotfish exert partner choice in interactions with cleanerfish but Caribbean parrotfish do not
Cooperation theory puts a strong emphasis on partner control mechanisms that have evolved to stabilize cooperation against the temptation of cheating. The marine cleaning mutualism between the Indo-Pacific bluestreack cleaner wrasse, Labroides dimidiatus, and its reef fish ‘clients’ has been a model system to study partner control mechanisms and counterstrategies. These cleaners cooperate by eating […]