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A case of adult cannibalism in the gray mouse lemur, Microcebus murinus
1Department of Sociobiology/Anthropology, University of Göttingen, Göttingen, Germany. anni.m.hamalainen@gmail.com
Abstract:
Cannibalism, defined as the eating of conspecific flesh, has been observed in a number of primate species, although it is still a relatively rare phenomenon. In cases where primates were seen feeding on an individual of the same species, the victims have exclusively been infants or juveniles. Here, I report an event of a free-living, adult male gray mouse lemur, Microcebus murinus, cannibalizing an adult conspecific female that died of an unknown cause. This observation has implications for the basic ecology of the species and highlights the potential for great flexibility in diet and behavior by a primate. This is, to my knowledge, the first communication of cannibalistic behavior in this species, as well as the first reported case of a nonhuman primate cannibalizing an adult conspecific.
Insights
Cannibalism in primates is rare, usually involving juveniles. This study documents the first observed instance of an adult male gray mouse lemur (Microcebus murinus) cannibalizing an adult female of the same species.
Area of Science:
- Primate ethology
- Behavioral ecology
- Zoology
Background:
- Cannibalism, the consumption of conspecific flesh, is a documented but rare behavior in numerous primate species.
- Previous observations of primate cannibalism have exclusively involved the predation of infants or juveniles by adults.
Purpose of the Study:
- To report the first documented case of cannibalism on an adult conspecific by a gray mouse lemur (Microcebus murinus).
- To explore the ecological and behavioral implications of this unusual predatory event in primates.
Main Methods:
- Direct observation of a free-living adult male gray mouse lemur (Microcebus murinus).
- Documentation of the consumption of an adult conspecific female that had died from an unknown cause.
Main Results:
- An adult male gray mouse lemur (Microcebus murinus) was observed cannibalizing an adult female conspecific.
- This represents the first reported instance of cannibalism on an adult conspecific in this primate species and among nonhuman primates.
Conclusions:
- The observed cannibalism in gray mouse lemurs (Microcebus murinus) suggests significant dietary and behavioral flexibility in this species.
- This finding challenges previous assumptions about the limitations of cannibalistic behavior in primates, particularly regarding adult prey.
