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Bio Discussion Paper 2

Bio Discussion Paper 2 - Radical Adventures Respiratory...

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Radical Adventures: Respiratory Adaptations in Deep Diving Mammals! The nature of deep diving in general is such that practicing animals are submerged in deep depths of water for prolonged periods of time. As such, it is normal that there be adaptations that allow for the feasibility of such activities: anaerobic dives with cardiovascular adjustment, increased oxygen storage capacities, increased efficiency in using stored oxygen, and lung collapse at shallow depths are all respiratory adaptations in deep-diving mammals that have enabled the possibility of such deep dives. PJ Butler conducted and experiment in which diving birds and mammals were monitored during forced and voluntary dives; the results of these experiments showed that during the deep dives the animals entered a state of bradycardia, intense vasoconstriction and anaerobiosis – all of which allowed for the most efficient use of oxygen to last the duration of the dives.
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