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。
The next year , during paleontological excavations , primitive stone tools came to light , bringing with them the tantalizing possibility that fossilized human remains might eventually follow 第二年，古生物学家在那里发掘出原始石器，让人兴起也许还能找到人类化石的希望。
Michael ryan , curator of vertebrate paleontology for the cleveland museum of natural history , published the discovery in this month ' s journal of paleontology 迈克尔瑞安是克利夫兰自然历史博物馆古脊椎动物部门的负责人，他在本月的古生物学杂志上对外公布了这一新发现。
Michael ryan , curator of vertebrate paleontology for the cleveland museum of natural history , published the discovery in this month ' s journal of paleontology 迈克尔?瑞安是克利夫兰自然历史博物馆古脊椎动物部门的负责人，他在本月的《古生物学杂志》上对外公布了这一新发现。
Forty years ago , for example , palaeontologists thought that hominids , the group of primates that includes modern humans , had been distinct from other apes for some 25m years 比如四十年前，古生物学家就认为原始人（包括现代人在内的灵长类群体）与大约2500万年前的其它类人猿明显不同。
