JAPANESE TOP Message from the Director Information Faculty list Research Cooperative Research Projects Entrance Exam Publication Job Vacancy INTERNSHIP PROGRAM Links Access HANDBOOK FOR INTERNATIONAL RESEARCHERS Map of Inuyama
TOPICS
BONOBO Chimpanzee "Ai" Crania photos Itani Jun'ichiro archives Open datasets for behavioral analysis Guidelines for Care and Use of Nonhuman Primates(pdf) Study material catalogue/database Guideline for field research of non-human primates 2019(pdf) Primate Genome DB

Primate Research Institute, Kyoto University
Inuyama, Aichi 484-8506, JAPAN
TEL. +81-568-63-0567
(Administrative Office)
FAX. +81-568-63-0085

Copyright (c)
Primate Research Institute,
Kyoto University All rights reserved.


Contact

Japanese

Long-sightedness in old wild bonobos during grooming
Heungjin Ryu, Kirsty E. Graham, Tetsuya Sakamaki, Takeshi Furuichi
Summary

Some scientists have suggested that, among Hominidae, prolonged postmenopausal longevity evolved uniquely in humans , while others disagree . There have, however, been few empirical studies on how physiological aging and somatic durability in humans compare to our closest relatives - chimpanzees and bonobos . If prolonged lifespan is selected for in humans, physiological aging, including reproductive and somatic senescence, might be different for Pan and Homo. But it seems that the parameters of reproductive senescence, such as the age of having their final offspring and the number of years between generations, are not very different between chimpanzee and human females . Here, we report evidence for five cases of long-sightedness (presbyopia) in old wild bonobos, exhibited during grooming. Our results suggest that senescence of the eye has not changed much since the divergence of Pan and Homo from their common ancestor.
2016/11/08 Primate Research Institute