Medical Scanner Reveals Dino Heart 掃描恐龍心臟

The heart: A a grapefruit-sized, reddish brown clump

這個心臟是柚子大小的棕紅色化石

The first ever fossilised dinosaur heart has been discovered by scientists in the US.

It was found in the remains of a 66 million-year-old creature dug up in South Dakota.

The researchers used a computer tomography (CT) scanner to investigate the organ. The study shows the dinosaur, nicknamed "Willo", to have a four-chambered heart more akin to a human or a bird than a lizard.

The findings, the scientists claim, suggest the beast's circulatory system was more advanced than that of reptiles, and supports the hypothesis that many dinosaurs were warm-blooded animals.

美國科學家日前對第一次發現的恐龍心臟化石進行了深入研究。

這個心臟化石是在南達科塔發掘的一只6600萬年前的恐龍化石中發現的。

研究人員使用了一部電子掃描儀對這個心臟進行了掃描，結果表明這只綽號為“Willo”的恐龍具有四個心室，在這一點上它更像人類或鳥類，而不像蜥蜴類爬行動物。

科學家們稱此項發現表明了這種恐龍的循環系統比蜥蜴要先進的多，并且有力支持了關于許多恐龍是溫血動物的推斷。