1. List by genus, species, & common name the PROSIMIANS one can see at the Zoo

·      Daubentonia madagascariensis  - Aye-Aye

·      Eulemur macaco - Black Lemur

·      Varecia variegata variegata - Black and White Ruffed Lemur

·      Varecia variegata rubra - Red Ruffed Lemur

·      Lemur catta - Ring-tailed Lemur

·      Eulemur fulvus albifrons - White-Fronted Lemur or Brown Lemur

 

2. List by genus, species, & common name the AMERICAN MONKEYS one can see at the Zoo

·      Alouatta caraya - Black Howler monkey

 

3. Please list by genus, species, & common name, if known, the AFRICAN MONKEYS one can see at the S.F. Zoo

·      Mandrillus sphinx - Mandrill

·      Erythrocebus patas - Patas monkey

·      Cercopithecus diana - Diana Monkey

 

4. Please list by genus, species, & common name, if known, the ASIAN MONKEYS one can see at the S.F. Zoo

·      Macaca silenus - Lion-tailed Macaque

·      Presbytis francoisi - François’ Langur

 

5. Please list by genus, species, & common name, if known, ALL the APES one can see at the S.F. Zoo

·      Pan troglodytes - Chimpanzee

·      Pongo pygmaeus - Orangutan

·      Gorilla gorilla gorilla - Western Lowland Gorilla

·      Hylobates syndactylus - Siamang

 

6. Of all of the primates one can see at the S.F. Zoo, which ones are the MOST NUMEROUS?

·      The day I visited the Zoo the Aye-Aye forest was closed, the orangutans and the chimpanzees were not out, and I assumes the various species of lemurs shuld be counted as sepaarte, so I would have to say the 7 seven gorilla is the largest primate group (after humans)

 

7. Which apes at the S.F. Zoo have INFLATABLE THROAT SACS?

·      Hylobates syndactylus - Siamang

 

8. List by Genus-species, common name, & geographical distribution at least two NOCTURNAL primate species one can see at the S.F. Zoo.

·      Daubentonia madagascariensis  - Aye-Aye

·      Eulemur fulvus albifrons - White-Fronted Lemur or Brown Lemur. These lemurs are technicaly not nocturnals, but you saked for two and I didn’t find any other one. These lemurs are the most active during the early morning and evening, so they come the closest being nocturnals ( I don’t know what other primates might have been in the closed Aye-Aye forest section fo the zoo.)

 

9. Name (by Genus-species, common name, and geographical area of origin) 2 representatives of the "LEAF-EATING" MONKEY GROUP at the S.F. zoo?

·      Alouatta caraya - Black Howler monkey; New World Monkey

·      Presbytis francoisi - François’ Langur; Asian Monkey

 

10. Name at least one primate species at the Zoo for each of the following types of locomotor patterns:

• Terrestrial quadrupedalism: Daubentonia madagascariensis - Aye-Aye
• Knuckle-walking quadrupedalism: Gorilla gorilla gorilla - Western Lowland Gorilla
• Brachiation: Hylobates syndactylus - Siamang
• Arboreal quadrupedalism: Pan troglodytes - Chimpanzee

11. Name six features of the Aye-Aye that make it unique among the primates.

• They have a moist area of skin on their nose.
• All of its toes has claws except the third, the longer hallux.
• A large percentage of their diet consists of insect larvae that live inside dead wood.
• They were classified as rodents during the 19th century.
• They are killed because their bizarre appearance makes some folks believe they are an omen of evil.
• They have only 18 teeth, and lack the typical prosimian toothcomb.

12. List by Genus & species, common name, and geographical area of origin all primate species at the S.F. Zoo that have PREHENSILE TAILS.

·      Alouatta caraya - Black Howler monkey; New World Monkey

 

13. With reference to the Black Howler Monkey, complete the following statements:

1. Their primary foods are leaves, fruits, and other vegetable
2. The reason the howlers are the only primates in this part of the zoo who can hang by their tail is prehensile.

14. With reference to the Lion-tailed macaque, complete the following statements:

1. They are the one of the smallest of macaques.
2. They communicate visually through facial expression including a protruding lip gesture.
3. They are one of the most seriously  endangered macaques/mammals.
4. Their primary habitat is the dense, moist evergreen and tropical hill forests  of the southwestern peninsular India and western Ghats mountains.

 

15. With reference to the Francois Langurs, complete the following statements:

a.       Much of their habitat was destroyed due to bombing during the Vietnam War.

b.      Their diet consists primarily of leaves,  which necessitates aid in digestion.

c.       Their primary habitat is tropical monsoon forest, rock clifss on river banks in Southeast Asia from southeastern China to central Laos and Vietnam

 

16. With reference to the Diana Monkeys, complete the following statements:

a.       They live in troops of 5 - 30.

b.      Their cheek pouches allow to load up on food in places of danger or competition.

c.       Both hands and feet have opposable, grasping thumbs.  

d.      Their primary habitat is the coastal rain forests, in the upper levels of primeval forest trees.

e.       They are one of Africa's most threatened primates due to hunting and logging.

f.        They have a very distinctive color pattern to their hair with a white eyebrow strip, a reddish-brown rump and back, and a white chest.

 

17. With reference to the Ring-Tailed Lemurs, complete the following statements:

a.       They live in social groups of 3  to 24 animals.

b.      Females are dominate over males.

c.       Their tail is used as both as a balancing rod in leaps and as tools in“stink fights” wherein males impregnate their tails with scent and then shake and quiver the tail over the head at their opponent.

 

18. How many chimpanzees are living at the S.F. Zoo? From where did they come?

·      According to the sign there are 4 chimpanzees but  I didn’t have a chance to see them. They were all caught in Africa in the wild in the 1950s and 60s. It is illegal to import wild born chimpanzees since the 1970s.