Presentation By Brandon Krulick Maria Woerz Victoria Brown Emily Drake and Claudia Toulany Introduction Kingdom Animalia Phylum Molluska Class Cephalopoda Subclasses ID: 226402
Download Presentation The PPT/PDF document "Cephalopoda" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
Cephalopoda
Presentation By:
Brandon
Krulick
, Maria
Woerz
, Victoria Brown, Emily Drake, and Claudia
ToulanySlide2
Introduction
Kingdom: Animalia
Phylum:
MolluskaClass: CephalopodaSubclasses: Coleoidea Nautiloidea Ammonoidea (extinct)Slide3Slide4
https://www.youtube.com/watch?v=GDwOi7HpHtQ
Slide5
EVOLUTION
Cambrian
(530
Mya) from a monoplacophoran-like molluskAbout 416 Mya, cephalopods diverged into nautiloids and coleoidsColeoids
internalized their
shell during
the late Paleozoic period.
This internalization of the
shell led
to the diverging of
coleoid
into
Octopodiformes and DecabrachiaSlide6Slide7
Characteristics
Primarily composed of a body, head, and foot
Foot is used for movement
Movement is also controlled by the mantle cavity and siphonAll have three heartsBlue bloodedLarge brainsAdvanced nervous systemsComplex eyesMuscular casing (mantle)Minimum of 8 armsArms are directly attached to their headMany species have tentaclesTheir arms have either cirri, suckers, or hooks
Many have a shellSlide8Slide9
Characteristics
Colour change
Carnivores
Prey include: fish, crustaceans, and mollusksHorn-like beaksTongue used to draw food into the mouthSlide10
Defence mechanisms
Tentacles
Camouflage
Sepia sac (ink)https://www.youtube.com/watch?v=5rqhomPaxhE Slide11
Life Cycle
1
- 15 years
Semelparous reproductionCourtship behaviour: male changes colour rapidly Penis or hectocotylus used to transfer spermatophore Egg cluster Variable hatching time No larval stage Rapid development Slide12Slide13
Fun FactsSlide14
Blue- ringed octopus
Known as one of the world’s most venomous animals
Can kill an adult human within minutesSlide15
Jet Propulsion
Water flows to mantle cavity, thick muscles within the mantle wall contract causing water to travel out a narrow funnel
Backward when feeling threatened, forward when attacking prey
Can swim up to 25 miles an hour
Ex: Neon flying squid Slide16
Vampyrotheuthis
infernalis
: VAMPIRE SQUID FROM HELL Bioluminescent arms, glowing blue light
Greater hooked squid
Onykia
ingens
Record breaking penisSlide17
Sources
Corona, Lauren. "What Are the Characteristics of a
Cephalopod?”
Animals. Demand Media, n.d. Web. 31 Mar. 2014. <http://animals.pawnation.com/characteristics cephalopod- 5394.html>."Class Cephalopods." Cephalopods. N.p
.,
n.d.
Web. 31 Mar. 2014. <http://www.angelfire.com/mo2/animals1/cephalopod/c ephalopod.html>.
"About E-Fauna BC." Cephalopods.
N.p
.,
n.d.
Web. 25 Mar. 2014.
<
http://www.geog.ubc.ca/biodiversity/efauna/Cephalopods.h
tml>Slide18
"Cephalopod ." Wikipedia. Wikimedia Foundation,
n.d.
Web. 26 Mar. 2014. <http://en.wikipedia.org/wiki/Cephalopod#Reproduction_and_lif
e_cycle>."University of California Museum of Paleontology." The Cephalopoda. N.p., n.d. Web. 26 Mar. 2014. <http://www.ucmp.berkeley.edu/taxa/inverts/mollusca/cephalopo da.php>.Google ImagesVendetti, J. (2006). The
cephalopoda
. Retrieved 31 March, 2014, from http://www.ucmp.berkeley.edu/taxa/inverts/mollusca/cephalopoda
hp
Slide19
Kröger
, B.,
Vinther
, J. & Fuchs, D. (2011). Cephalopod origin and evolution: A congruent picture emerging from fossils, development and molecules: Extant cephalopods are younger than previously realised and were under major selection to become agile, shell-less predators.. Retrieved 31 March, 2014, from http://www.ncbi.nlm.nih.gov/pubmed/21681989 Nepolina. Retrieved 31 March, 2014, from http://www.manandmollusc.net/advanced_introduction/nepolina.ht ml Vendetti, J. (2006). The cephalopoda. Retrieved 31 March, 2014, from http://www.ucmp.berkeley.edu/taxa/inverts/mollusca/cephalopoda.p hp Slide20
"8 Amazing Facts about Cephalopods."
Noadis
Art. 8 Oct. 2012.
N.p., Web. 31 Mar. 2014. http://www.noadi.net/2d-art/8-amazing-facts- about-cephalopods/."Basic Facts About Cephalopods." Ocean Biogeographic Information System. N.p., n.d. Web. 31 Mar. 2014. http://www.iobis.org/node/161.
Craig, Nicolette. "Squid Has Record-breaking Penis." Practical Fish Keeping.
N.p
., 14 July 2010. Web. 30 Mar. 2014.
http
://
www.practicalfishkeeping.co.uk/content.php?sid=3023
Nautilus
belauensis
. (2014). Retrieved 31 March, 2014, from http://en.wikipedia.org/wiki/Nautilus_belauensis