![]() ![]() The rarity of such infanticide mainly reflects a low mortality rate of dominant males in one-male groups, and it does not dispel previous observations that infanticide occurs during group disintegrations. Using more than 40 years of data from up to 70% of the entire population, we found that only 1.7% of the infants that were born in the study had died from infanticide during group disintegrations. Here we measure the impact of infanticide on the reproductive success of female mountain gorillas, and we examine whether their dispersal patterns reflect a strategy to avoid infanticide. Previous studies have suggested that female mountain gorillas benefit from residing in multimale groups because infanticide occurs when one-male groups disintegrate after the dominant male dies. They use displays of strength, vocalizations, and physical violence to assert their dominance.Infanticide can be a major influence upon the social structure of species in which females maintain long-term associations with males. Territorial Habitsīoth silverback gorillas and grizzly bears have territorial habits and defend their territory fiercely. Since they don’t have thumbs as humans do, they cannot use tools for hunting, as some primates have been known to do, so they depend heavily on their sense of smell to locate prey items instead. They often use their large claws to catch prey and dig for roots or grubs beneath fallen logs or underground caves. Grizzly bears primarily feed on salmon but consume smaller mammals such as squirrels or ground birds when fish isn’t available. They use their hands to grasp food items such as fruits from trees or plants growing in the ground. They mainly eat fruits, leaves, bark, shoots, tree roots, small mammals like rodents, insects, eggs, honeycombs, and occasionally fish and other aquatic animals – depending on what’s available in the area they inhabit. Silverback gorillas include a wide variety of food sources in their diet. ![]()
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