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Post by OldGreenGrolar on Jan 24, 2021 7:08:54 GMT -5
At what age are the great apes mature adults? Free-ranging mountain gorilla males are fully grown at approximately 15 years of age. In reply 1. I will do some research on the chimpanzees.
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Post by OldGreenGrolar on Jan 24, 2021 7:11:09 GMT -5
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Post by OldGreenGrolar on Jan 24, 2021 7:13:00 GMT -5
The growth pattern of chimpanzees: Somatic growth and reproductive maturation inPan troglodytes.Growth of chimpanzees reared at the Kumamoto Primates Park of Sanwa Kagaku Kenkyusho Co. Ltd. was studied cross-sectionally from the viewpoints of somatic growth and reproductive maturation. Distance and velocity curves were expressed using spline function method. Males showed adolescent growth acceleration in body weight, with a peak at 7.86 yrs of age, but not in trunk length. Females showed continuous rapid growth from mid-juvenile to adolescent phase in both body weight and trunk length, but no isolated adolescent spurt. The Sanwa chimpanzees matured at about 12.5 yrs of age for females and 15.0 yrs for males. The mean adult weights and trunk lengths were 53.2 kg and 507.8 mm for males and 42.7 kg and 481.6 mm for females. The Sanwa chimpanzees had similar growth patterns to those of the Yerkes chimpanzees, although they showed a slight delay in infancy, and a higher growth rate from the early juvenile phase onwards. Growth patterns in these two laboratories may be regarded as “normative” for laboratory-reared chimpanzees. They matured earlier than wild chimpanzees by more than two years. The major reason for the retarded maturation in wild chimpanzees is the delay of growth from infant to the early juvenile phases (0–4 yrs of age), probably owing to a limited nutritional supply from the mother. Development of the testes comprised three phases: slow growth from infant to juvenile (until 6.4 yrs); rapid growth around adolescence (until 9.2 yrs); and adult (mean testicular volume, 187 cm3). Setting the nutritional standard at 2,000–2,600 Cal/day (= Kcal/day) per adult, calories were considered for captive chimpanzees in each age class. link.springer.com/article/10.1007/BF02381860
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Post by King Kodiak on Jan 24, 2021 11:35:48 GMT -5
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Post by brobear on Jan 24, 2021 12:53:41 GMT -5
Reply #6 - very similar to the brown bear. At the age of 15 years, completely full-grown.
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Post by OldGreenGrolar on Jan 27, 2021 7:04:25 GMT -5
A look at the physical traits of the great apes. Great apes are physically stronger than us humans. That is the way they are made.
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Post by King Kodiak on Jan 27, 2021 14:37:58 GMT -5
HUMAN-GORILLA SKELETONS
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Post by tom on Jan 27, 2021 16:56:05 GMT -5
Nice.... Long arms, huge pelvic area, skull and rib cage all supersized compared to human skeleton.
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Post by King Kodiak on Jan 27, 2021 16:59:01 GMT -5
Nice.... Long arms, huge pelvic area, skull and rib cage all supersized compared to human skeleton. All that while being shorter. That is called robusticity.
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Post by OldGreenGrolar on Jan 27, 2021 19:02:20 GMT -5
Just by looking at the bone structure, we can see that the gorilla is clearly stronger.
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Post by OldGreenGrolar on Jan 28, 2021 2:38:09 GMT -5
Is anyone able to make a bone comparison between an ape and a big cat?
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Post by OldGreenGrolar on Jan 29, 2021 6:08:17 GMT -5
Basic facts about the gorilla in general. It is good that we have a section dedicated to apes. The gorilla definitely deserve its own thread.
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Post by OldGreenGrolar on Jan 31, 2021 7:53:59 GMT -5
Reply 24. The gorilla has really giant hands.
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Post by brobear on Feb 2, 2021 4:35:40 GMT -5
sciencing.com/silverback-gorillas-6361263.html Silverback Gorilla Facts: Only male gorillas become a silverback. Male gorillas are considered mature adults at eight years old, although they are not yet fully grown. They continue to grow and have black hair for the next four years. During this time, they may leave their troops and live alone or join a group of other males of similar age. Male gorillas become silverbacks around the age of 13, when the hair across their shoulders and down their back becomes grayish or white in color. Generally, only silverback males become the leader of a troop. *The "silvering" of his back makes it easy to distinguish a full-grown male gorilla from one who is merely "sexually" mature. Too bad brown bears do not become silverback bears.
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Post by brobear on Feb 12, 2021 4:47:31 GMT -5
Skulls and Bite Force:
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Post by brobear on Feb 12, 2021 4:49:28 GMT -5
Orangutan Skull
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Post by brobear on Mar 2, 2021 6:41:16 GMT -5
www.livescience.com/worlds-oldest-orangutan-dies.html Zookeepers mourn death of world's oldest orangutan The world's oldest known orangutan, a 61-year-old Sumatran female called Inji, has died at her home at the Oregon Zoo. Although her exact birth date is unknown, Inji had been at the zoo since 1961 and was suspected to be a 1-year-old at the time, according to a statement from the zoo. She was brought to the U.S. through wild animal trade that was legal at the time. "We knew she couldn't live forever, but this really hurts, and I know many visitors are grieving along with us," Bob Lee, who oversees animal welfare at the zoo, said in the statement. "Inji's ability to connect with people was incredible."
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Post by OldGreenGrolar on Mar 8, 2021 0:02:06 GMT -5
These are strong crushing jaws for skull bites.
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Post by OldGreenGrolar on Mar 8, 2021 0:02:53 GMT -5
Reply #6 - very similar to the brown bear. At the age of 15 years, completely full-grown. But they become sexually mature at a later age than bears.
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Post by King Kodiak on Mar 9, 2021 13:53:59 GMT -5
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