The maxakalisaurus topai was 13 meters long and weighed about nine tons . it had a large body , long tail and neck with a relatively small head 通过一些出土的化石碎片，巴西古生物学家发现了一种全新的恐龙种类，这种大型的食草动物生活在大约8000万年之前。
They noticed that the toes of both feathered dinosaurs and of the earliest flying birds were similar to those of modern birds that spend most of their time on the ground 但是古生物学家格棱博士与生物力学家班尼特博士认为，他们已经想出了如何找出答案。
Like a paleontologist , able to reconstruct an entire skeleton from one fossil bone , he was able to reconstruct a whole speech from the one word revolution 他从革命这一个词就可以虚构出整个的发言，就像古生物学家靠一块骨骼化石就可以建造出一副完整的骨架一样。
" it s always possible that something new or a better representation of something rare will show up in these sites , " said russell mccarty , a senior museum paleontologist 该博物馆的高级古生物学家拉塞尔麦克卡提对此表示，这种地点常常会有新的或更有价值的发现。
The newly discovered dino , shown looming over much smaller dinosaurs ? probably represents the largest feathered animal ever known , chinese paleontologists say 中国的古生物学家认为,这种新发现的恐龙-二连巨盗龙,可能是至今发现的最大羽毛动物,对较小的恐龙形成威胁
Using the world ' s largest microscope , paleontologists have peeked inside tiny fossils of 500 - million - year - old embryos , each about the size of a grain of sand 借助世界上最大的显微镜，古生物学家们得以探索包含有5亿年前胚胎的微小化石，每一个都如一粒沙子般细微。
" it ' s always possible that something new or a better representation of something rare will show up in these sites , " said russell mccarty , a senior museum paleontologist 该博物馆的高级古生物学家拉塞尔麦克卡提对此表示，这种地点常常会有新的或更有价值的发现。
In this way , it removed the last scientific objection to what many geologists and paleontologists thought was the great age of the earth and the sun 放射性原理对这个问题的解释，最终打消了人们的疑虑，地质学家和古生物学家关于地球和太阳业已存在了很久的理论得到公认。
A beautifully preserved fossil from southern germany raises questions about how feathers evolved from dinosaurs to birds , two paleontologists argue in a study published thursday 在德国南部发现的一具保存完好的恐龙化石日前引起了古生物学家们对动物羽毛进化过程的思考。
Based on previous fossil finds , paleontologists had estimated the largest pterosaur wingspans to be around 33ft , making it the largest ever animal to fly 根据先前发现的化石，古生物学家原本估计，体型最大的翼龙的翼展可能在33英?左右，荣登有史以来最大的飞翔动物的宝座。
