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Mako sharks must swim with their mouths open to ensure a constant flow of water over their gills—a condition known as ram ventilation. For the same reason, they can never stop swimming. They are one of a small group of sharks that have an elevated body temperature that can be more than 10 degrees higher than the surrounding water. It is thought that this warm-bloodedness—focused around the swimming muscles, digestive system, eye and brain—may give them a predatory advantage when diving into deep, cold water in search of prey. Published in New Zealand Geographic Issue 135 September - October 2015. Richard Robinson © 2015.
- Richard Robinson © 2015 No Reproduction without prior written permission.
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