WILD 3580 1st Edition Lecture 23 Outline of Last Lecture I Tooth Attachment II Fangs and Venom III Venom Components IV Antivenin Outline of Current Lecture I Loreal Pit II Methods of Obtaining Prey III Adaptations for Swallowing IV Reproduction Current Lecture I II III Loreal Pit Organ than senses heat through heat radiation See differences in temperature as small as 0 003C Distance and direction of the bite Tongue forked flicking collects chemical cues from the air o Surface area o Directionality Methods of Obtaining Prey 1 Venom 2 Constriction suffocate prey a Must have small vertebrae to form tight coils tend to have slower locomotion b Curved teeth to hold prey 3 Seize and hold while swallowing prey snakes inject toxic saliva to speed the digestion process Adaptations for Swallowing These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute IV Eat larger prey because it is more energy efficient will not have to hunt as often 1 Jaws are connected in front by elastic ligaments 2 Lower jaw expands downward a Streptostylic quadrate 3 Tracheal opening in the floor of the mouth Reproduction Reproduce 1 to 2 months after emerging from dormancy More active when its warmers Finding Mates o Behavior mechanisms that bring males and females in contact during the breeding season Crocodilians and lizards males establish territories overlapping territories of females can reproduce with them in exchange for protection Freshwater turtles males and females gather in a common area by ways of a shared resource Marine turtles females return to their natal nesting sites where males are also found Snakes some aggregate during dormancy hibernaculum in dens others follow scent trails of females using specific search patterns
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