Keeping this predator airborne at altitudes as high as 10,000 feet 将庞大的身躯保持在一万英尺的高空 requires a 12-meter wingspan, an accurate guidance system, and near-perfect eyesight. 需要12米的翼展精确的导航系统和超常...
For a giant like Quetzalcoatlus, flight control is everything. 对于体型庞大的披羽蛇翼龙而言，飞行控制至关重要。 This flying reptile has one of the most advanced autopilot systems in natural history. 这种飞行爬行动物具有...
Texas. 68 million years ago. 德克萨斯州。六千八百万年前。 Here death comes not only from well-armed gargantuan dinosaurs. 死亡不仅来自武装精良的巨型恐龙。 Sometimes it swoops down from the sky..on the wings of a flying r...
The name Deinonychus means terrible claw. 恐爪龙意为恐怖的利爪。 It's a reference to the hinged bone on its foot. 指的就是它脚爪上的铰接骨。 The cutting edge is sheathed in keratin, the same substance that forms a cat's claw. 锋...
Stalking the Cretaceous are predators like Tyrannosaurus Rex, with jaws that can bite down with nearly four tons of force. 在白垩纪潜伏着雷克斯霸王龙这样的捕食者，它们的血盆大口有四吨的咬力。 And Deinonychus, sportin...
A scan of a Deinonychus skull reveals a brain with an oversized optic nerve, 对恐爪龙头骨的扫描显示，它们的大脑有极大的视神经， the nerve which transmits visual information from the eyes. 这种神经能够传输从眼部来的...
For Deinonychus, Sauroposeidon would be a great meal, at least the juveniles, 对恐爪龙来说波塞东龙是一顿大餐，至少它们的幼崽是的。 because there would've been lots of them and because they would've been effectively defensele...
Tyrannosaurus Rex is powerful and intelligent. 雷克斯霸王龙兼具力量与智慧。 But it's also slow, lumbering, and ponderous, a predator that occasionally has to scavenge to survive. 但同时也动作迟缓笨拙，这位捕食者有时要靠...
A battle with Triceratops is more often than not a fight to the death. 与三角龙的决斗常常是生死之战。 This herbivore has evolved into a tank. 这种食草动物简直进化成了坦克。 Now, as a Tyrannosaur specialist, I don't like...
Fossils of Tyrannosaurus Rex have been unearthed in the U.S.,Canada, even Asia. 在美国，加拿大，甚至亚洲都曾出土过雷克斯霸王龙的化石。 For scientists, these discoveries point to one conclusion...this carnivore has little to...
