How big is 雙腔龍?

美國的房子是越蓋越大了. 在過去 40 年, 房子尺寸平均大了一倍! 這些房子這麼大, 你大 概可以塞 1000 個人進去! 只是會有點擠就是了.

橡樹是一種可以活得很老的樹, 能比任何人都活得久! 橡樹一年可以長出幾千個橡果, 橡果 大概就像冰塊一樣很讚喔.

One of the most famous and fearsome dinosaurs, T. rex lived during the Late Cretaceous (around 68–66 million years ago). As an apex predator, it measured up to 40 feet (12 meters) in length, stood about 13–15 feet (4–5 meters) tall at the hips, and weighed between 9–14 tons. It had powerful jaws lined with teeth capable of crushing bone, a robust skull, and tiny but functional arms. Its diet included large prey like hadrosaurs and ceratopsians.

A colossal sauropod dinosaur from the Late Cretaceous (about 100 million years ago), closely related to Argentinosaurus. Found in Patagonia, it is estimated to have reached lengths of up to 122 feet (37 meters) and weighed 55–77 tons. It was a slow-moving herbivore, relying on its size for protection against predators.

One of the largest known sauropods, Argentinosaurus lived during the Late Cretaceous (around 97–93 million years ago) in what is now South America. It could reach lengths of 98–115 feet (30–35 meters) and weigh as much as 100 tons. Argentinosaurus was a herbivore, with a long neck for reaching high vegetation and a massive, barrel-shaped body.

波音 747 是飛機的一種. 從 1969 年起, 它就比紅杉還短一點. 而在那之前, 因為它尚未 存在, 所以也沒有長短之別. 還有呢, 它的翼展比懷特兄弟所發明的第一架飛機(37 米)還 寬喔.