Snake Heart Balloons After Meal

The Burmese python’s heart triples in size after a nice big meal, thanks in part to a special blend of fatty acids.

Written byTia Ghose
| 1 min read

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Burnese pythonTAMBAKO THE JAGUAR, FLICKR

The heart of the Burmese python, a 15-meter long Asian snake, swells to three times its size after a big meal. The bizarre phenomenon is associated with a mixture of fatty acids circulating in its blood, and could have applications for heart disease treatments in humans, according to a study published Thursday (October 27) in Science.

The python often goes months without eating, then binges, sometimes devouring a whole deer, ScienceNOW reports. To handle this mega-meal, the snake’s metabolism kicks into overdrive and many of its internal organs, including the small intestines and the heart, swell.

To determine how this swelling occurred, researchers at the University of Colorado, Boulder, raised dozens of the pythons in their lab and observed changes in their blood chemistry. They ...

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