Friendship among Adult Female Blue Monkeys (Cercopithecus mitis)
A study group of blue monkeys in the Kakamega Forest, Kenya, provides data on friendly relationships between adult females. Females are invariably antagonistic toward members of other groups, and collaborate with their own groupmates in defending territorial boundaries. Females are primarily responsible for these aggressive intergroup encounters, which occur every other day on average. Encounters […]
Facial expressions of mice in aggressive and fearful contexts
Some animals display a variety of context dependent facial expressions. Previous studies have shown that rodents display a facial grimace while in pain. To determine if the facial expressions of mice extend beyond pain, facial expressions were analyzed in the presence of non-social, social and predator stimuli. In a vibrissae contact test, the whiskers of […]
Compassionate Conservation for Yellowstone’s Wolves
States in the Northern Rocky Mountains of the United States manage the gray wolf (Canis lupus) at low population levels through trophy hunting and lethal control. Although protected in Yellowstone National Park (YNP), wolves are subject to removal when they cross park boundaries. Thus, wolf management in the states adjacent to YNP is pitted against […]