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Sharks

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Sharks. Anatomy and Physiology. Body Shapes. Tail Shapes. Snout and ... Filter Feeding sharks such as the whale, basking, and megamouth sharks. Shark Digestion ... – PowerPoint PPT presentation

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Title: Sharks


1
Sharks
  • Anatomy and Physiology

2
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3
Body Shapes
4
Tail Shapes
5
Snout and Mouth
6
Snout Oddities
7

8
Shark Skeleton
9
Shark Teeth
10
Great White Shark Tooth
11
Grey Nurse Shark Teeth
12
Megalodon Tooth
13
Shark Brain
14
Shark Swimming
  • Swimming Shark

15
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16
Shark Heart and Circulation
17
Shark Reproduction
18
Sexual Dimorphism
  • Female sharks are larger than males.
  • Males have claspers, which are elongated pelvic
    fin edges.
  • Females have a cloaca, one opening for both
    digestive and reproductive functions.
  • Some scientists believe that male great whites
    become female when the reach a certain size.

19
Claspers
20
Cloaca
21
Viviparous Shark
22
Oviparous Shark
23
Ovoviviparous Shark
24
Shark Gills
25
Spiracles
26
Shark Skin - Denticles
27
Countershading
28
Bouyancy
29
Shark Senses - Smell
30
Smell Nasal Barbels
31
Shark Senses - Eyesight
32
Nictitating Membrane
33
Shark Senses - Electricity
34
Shark Senses - Vibrations
35
Shark Senses - Hearing
36
Shark Senses - Taste
37
Sharks Hot or Cold Blooded?
  • Warm Blooded Homeotherms generate heat
    internally and maintain a constant internal
    temperature
  • Cold Blooded Poikilotherms have a body
    temperature that changes with external condition.

38
Homeothermic Sharks
39
Shark Diet - Carnivores
  • Fast Moving Hunters.Great white, mako, tiger,
    hammerhead.

40
Shark Diet - Carnivores
  • Slow moving huntersbenthic
  • Sharks such as the zebra horn, angel and
    wobbegong sharks

41
Shark Diet - Carnivores
  • Filter Feeding sharks such as the whale, basking,
    and megamouth sharks.

42
Shark Digestion
43
Shark Tongue
  • Called a basihyal, the tongue is a thick piece of
    cartilage found on the floor of the mouth of a
    shark. Useless except with cookiecutter sharks.

44
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