Really???? Is it already time for the April Hoax? 7. Manatees regulate their buoyancy with their lungs Manatees’ lungs run along their spines on the top of their body. Their lungs are “like a flotation tank running along the backside of the animal,” Domning said. Using their rib cage muscles, they can compress their lung volume and make their bodies more dense. They use this mechanism to come to the surface to breathe instead of actively swimming up and down. Even while they sleep, their rib cage muscles will relax, expanding their lung volume and gently carrying them to the surface. After they breathe, the muscles contract and the manatee effortlessly sinks back under water.
Posted on: Sat, 20 Dec 2014 19:45:30 +0000
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