Science Presentation

1. Stingrays

2. Introduction of Stingray
The Stingray earned a great deal of negative
attention when animal promoter and
enthusiast Steve Erwin was stung by one and
died. That also evoked fear in people that this
could be their fate too if they were to come
into contact with one of them. The Stingray is
closely related to various species of sharks

3. Values Aspects(Characteristics)
The Stingray is very aggressive which is what makes it so dangerous.
They have a natural instinct to sting what they come into contact with.
That is why they may sting a person that they come into contact with
in the water. It isn’t because they have a desire to consume a person
or anything like that. The behavior is purely instinct and for their
ultimate ability to survive.
The Stingray is very curious and they aren’t fearful. That is why they
are often seen by those snorkeling or diving. The fact that the Stingray
will come very close to them often is part of the myths that they are
creatures looking for humans to sting. They are aggressive about
territory though so when it finds something out of the ordinary there
it will go to investigate.
So , Stingrays are an AGGRESSIVE and CURIOUS
creatures !! XD

4. • The stingray's stinger is razor-sharp, serrated
and attached to the stingray's thin tail.
• Stingray can whip it's stinger to pretty much
anywhere, extremely quickly as the long, thin
tail of the stingray is extremely agile and very
flexible.
How is the stingray is able to swim
well?

5. • They flattened their body shape to their
advantage by resting on the sea floor and
therefore able to hide from predators as well
as keep an eye out for potential prey.
• The main predators of the stingrays are
sharks, seals, sea lions and large species of
carnivorous fish along with humans.
How is the stingray able to
camouflage?

6. • Size of a sting really is dependent on what
species of stingray it is.
• Some species of stingray in the deep ocean
get up to 14ft long including the tail and these
species of stingray naturally have a larger
stinger.
• The smaller stingray species tend to have
small stingers, so that the stinger is relevant to
the size of the body of the stingray.
Extraordinary measurements

7. • Stingrays breed during the winter and the
female stingray gives birth to live young
usually between 5 and 15 baby stingrays.
• The baby stingrays develop inside the mother
stingray for around 9 months.
• They feed off the remaining yolk in their eggs
sacks. When this runs out, the baby stingrays
are feed milk in the uterus of the female
stingray.
How stingrays reproduce?

8. • Warm, tropical waters
Habitat of the stingrays

9. • The serrated edges of the spines can rip flesh
when the stings is withdrawn.
• The venom causes intense pain and swelling.
Poisons

10. Reflection
We learnt that there are only 6,394
Stingrays
In the world. They are classified in
the suborder Myliobatoidei, which
consists of 8 families of Rays.
Stingrays are common in coastal
tropical and subtropical marine
waters throughout the world, and
also includes species found in
warmer temperate oceans, such as

11. NE Message
 We have confidence in our future.
 Stingrays are threatened animals in the eco-system
and the nature reserves are trying to save them from
being extinct.
 We must ourselves defend Singapore.
 Since stingrays are already endangered, they must
protect and defend their homeland and family from
being more endangered.

12. POP QUIZ TIME !!

13. Q1.
Does stingrays earn
negative attention or
positive attention?

14. Answer for question 1 :
Negative !!

15. Q2. How many Stingrays
still exist?

16. nswer for question 2:
6394 !!

17. Q3. Give 2
characteristics
that enable the
stingray to swim
well.

18. Answer for question 3 :

19. How long can a
stingray get up to?
Q4 :

20. Answer for question 4 :
14ft

21. Now , The Last Quest

22. 5) Stingray is closely related to various species of
___________.
a) Sharks
b) Killer Whale
c) Crocodile

23. Answer for question 5 :
a) SHARKS !!

24. • http://a-z-animals.com/animals/stingray/
• www.bbc.co.uk
• animal.discovery.com
Credits

25. Done by : - Eliorra
- En Ru
- Ryan
- Tamara
- Hairul
- Atikah
Stingrays
Our Awesome
group members !!

26. or