Two fully-grown female Japanese Macaque monkeys (Macaca fuscata) examine their thoughts as they pause between bouts of grooming in front of autumn leaves in Jigakudani Monkey Park, Nagano Prefecture, Japan.

The facial skin changes from greyish tan to bright red as individuals pass through various phases of hormonal maturation. The posterior and genitals are also bright red and in full view as they move around, as their tails are very short. Quite a few of the individuals I saw had fairly serious wounds on ears, face, hands, etc. and it seems that quite a few squabbles are resolved forcefully. I also noticed that mothers with babies were particularly wary of certain males, and would scatter as quickly as possible with the newborn clinging tightly to the underside of her torso when these males approached. Life did not seem dull, at the very least, but perhaps a bit stressful.

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Make:	NIKON CORPORATION
Model:	NIKON D750
Exposure:	0.003 sec (1/320)
Aperture:	f/5.6
ISO Speed:	400
Focal Length:	290 mm
Lens:	80.0-400.0 mm f/4.5-5.6