How does a heart the size of a car keep a giant alive?

Inside View: World's Largest Dinosaurs · 4:38 · Video: American Museum of Natural History · Watch at the source

In short: The American Museum of Natural History explores the biological limits of the sauropods, the long-necked giants that reached lengths of 150 feet. This exhibition moves beyond skeletons to explain the internal mechanics of extreme scale.

The exhibition examines how massive size dictates basic biological functions like respiration, metabolism, and reproduction. By looking at existing organisms to understand extinct ones, the museum illustrates how these giants managed to breathe, move, and survive at such proportions.

A centerpiece of the display is a life-sized, fleshed-out model of a female Mamenchisaurus. This 60-foot-long dinosaur featured a remarkable 30-foot neck, serving as a primary example for visitors to visualize how heart rate and internal systems adapted to super-sized anatomy.

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