Facts about Stump-tailed Macaques
- 09
Young stump-tailed macaques remain dependent on their mothers for approximately 2-3 years before becoming fully weaned and independent within their social group.
- 08
Genetic studies reveal stump-tailed macaques diverged from rhesus macaques approximately 5 million years ago, making them distinct evolutionary lineages within the genus Macaca.
- 07
Captive stump-tailed macaques have been observed using tools to crack open nuts, demonstrating problem-solving abilities comparable to other great apes studied in primatology research.
- 06
Stump-tailed macaques produce a distinctive loud alarm call when threatened by predators, alerting group members within a 500-meter radius to potential danger in their forest habitat.
- 05
Their diet consists primarily of unripe fruit, seeds, and leaves, with stump-tailed macaques spending approximately 70 percent of their foraging time on the ground rather than in trees.
- 04
Facial swellings in female stump-tailed macaques swell to approximately double their normal size during estrus, signaling reproductive readiness to males in their social group.
- 03
Stump-tailed macaques engage in reconciliation behavior, where former opponents embrace and make lip-smacking vocalizations within minutes of aggressive conflicts to restore social bonds.
- 02
In Southeast Asia, stump-tailed macaques live in groups of 10-60 individuals with strict hierarchies enforced through frequent aggressive confrontations and elaborate threat displays.
- 01
Measuring up to 53 centimeters in body length, stump-tailed macaques possess tails only 15-23 centimeters long, earning their common name from this distinctive truncated tail.