Transcript Slide 1

470 kg off Nova Scotia 2004
Adaptation: pelagic realm
• Many Habitats
• Reproduction
• Form and Function
– camouflage
– locomotion
– feeding devices
– sensory system
– Other physiological systems
Distributions:
mako vs blue
Isurids
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Counter shading
Streamline body
First dorsal is set near pectorals
Sickle-shape tail
Peduncle Keel
Large gills
Extensive muscle cones
Red muscles
Thermo-regulation
“When similar structures that are not inherited from a
common ancestor evolve in unrelated animals, we call
it convergence, or convergent evolution.”
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Reynold’s number
Ratio of inertial forces to viscous forces