Siamangs are a species of gibbon found in Southeast Asia. They live in family groups in forests and are known for their loud vocalizations. Siamangs use their inflatable throat sacs to produce booms, barks, and other sounds when communicating or defending their territory. They are agile tree-dwellers that move through the trees acrobatically. Siamangs are endangered due to habitat loss and poaching for food and traditional medicine.

1. Science
Presentation
SIAMANG
LEARNING AT
THE ZOO
23RD MAY 2013
2E2

2. Science Aspects
Physics
• How's the Siamang able to sound so loud?
• All gibbons can make amazingly loud sounds, and the
Siamang’s "song" includes booms and barks, made
louder by the inflatable throat sac.

3. Physical Description
• Siamangs can grow as tall as 89 cm, and weigh up to
10 kg.
• Siamangs have a grayish or pinkish throat sac, which
they inflate during vocalizations.
• Their arms may reach 2.5 times the length of their
body.

4. Chemistry
 Primates may have Hepatitis A or B and
keepers are required to be vaccinated.
 Avoid direct contact with disinfectants used in
cleaning dens.

5. Biology


230 days.

6. VALUES ASPECTS
Friendly
 Siamangs are notable for having more coordination
and contact during daily activities.
Fierce
 Siamangs are fiercely territorial rituals.
 Rare boundary disputes involve high-speed chases
through the trees, slapping and biting.

7. REASONS FOR CHOOSING
THOSE VALUES.
It is rare for an animal to be friendly
yet fierce.
It is similar to us we are kind to
those who are kind to us, furious to
those who don’t respect/treat us
well.
So be kind!

8. We must ourselves defend
Singapore.
Siamangs is
agile, they can
chase through

9. We Have Confidence In
Our
Future.
In the trees, almost no predators can catch them.
Humans are their biggest enemy. Poachers hunt them to
sell the meat for food and body parts for medicinal use.
Siamangs are endangered animals.

10. IT’S
QUESTION
TIME!
What does
Siamang EAT?

11. Seedings.
• As a frugivorous animal, the siamang disperses
seeds through defecation. It can carry seed over
300 m with the shortest distance being 47.6 m
from the seed resource.
• They also eat a small amount of insects, bird
eggs and small vertebrates.
• Frugivorous : Fruit – eater.

12. HOW DOES A SIAMANG
FIGHT?
They SING to fight! They
defend about 60 percent of
their range as their group
territory.

13. What species is
SIAMANG?
They are one the 14 species of
GIBBONS (also known as the lesser
apes)

14. Where do they
LIVE?
They live in the forests of
South-east Asia as in family
groups. An adult pair with 2
or 3 young.

15. How do they move?
When on the ground they are usually bipedal (two footed).
In the trees, they move by acrobatic hand-over-hand
swinging through the branches.
Flights of 8 to 10 meters have been witnessed.
The heavier and larger Siamangs, however, travel slower
than the white-cheeked gibbons.

16. HOW DO THEY COMMUNICATE?
A deep “Boom”, when it
sings with its mouth closed.
A loud “Wow”, when it
sings with its mouth open.

17. THANK YOU FOR
LISTENING!
 It was a fun way to
educate people.
 Being in this group
helped us to bond
together.
 We LOVE SCIENCE
BETTER NOW!
At least a bit

18. Sources
• http://nswfmpa.org/Husbandry%20Manuals/Published%20M
anuals/Mammalia/Siamang.pdf
• http://nationalzoo.si.edu/animals/primates/facts/factsheets/gi
bbons/siamang/default.cfm
• www.google.com
• http://en.wikipedia.org/wiki/Siamang
• http://www.arkive.org/siamang/symphalangus-syndactylus/
• http://www.enchantedlearning.com/subjects/apes/siamang/