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Some Dolphins Are Bad Divers

Elisa Mendoza, Contributer

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Dolphins appear to be true masters of swimming—leaping, frolicking, and spinning. But as new research shows, dolphins aren’t quite so good at a related skill: diving. Some dolphins can be stressed during deep dives, and in some cases, the consequences can be fatal.

Typically, when dolphins dive, they save energy by adjusting their swimming technique, and regulate their airflow by deliberately collapsing their lungs. It was thought that they would also slow their heartbeats.

When a dolphin’s deep dive is coupled with high energy output, which forces them to use precious oxygen, the effects on their physiology can be startling.

Experiments proved, that diving dolphins often experience irregular heartbeats the deeper the dive, the higher likelihood of cardiac arrhythmia.

The animals aren’t having heart attacks, but it isn’t great for them. The implications show it’s not a completely perfect system.

The scientists measured how much energy bottle nose dolphins use during their flight response. They measured the animals’ oxygen use and swimming kinematics both at rest and during a dive, and used the results to model how much energy would be spent during a flight response.

Credit Source: Google

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Some Dolphins Are Bad Divers