We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What Is Unusual about a Burmese Python's Heart?

The Burmese python is one of the largest snakes in the world and generally weighs up to 200 pounds (90 kilograms). Like most snakes, a Burmese python does not need to eat very often. An adult Burmese python usually eats once a month, while the younger ones eat as often as once a week. If required, they can go without eating for longer periods of time. When they do find prey, which are usually birds or small mammals like rats and rabbits, they swallow their meal whole and digest practically everything. Burmese pythons are known to sometimes eat surprisingly large animals like pigs and alligators.

Possibly because of these eating habits, Burmese pythons have an unusual metabolic process in which some of their organs increase in size after eating. The heart of a Burmese python grows 40% within 72 hours of a large meal. The medical term for heart enlargement is "cardiac hypertrophy." Unlike cardiac hypertrophy in humans, however, which is abnormal and possibly dangerous, experts have discovered that heart enlargement in Burmese pythons after meals is entirely normal and safe.

More about Burmese pythons:

  • As of 2014, the world's heaviest snake is a Burmese python at the Serpent Safari Park in Illinois that weighs 403 pounds (183 kilograms).
  • Burmese pythons can't see very well, so they locate their prey through chemical and heat sensors.
  • Burmese pythons have special cells in their small intestines which allow them to digest bones.
Discussion Comments
WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.