Richardrli的个人资料

新的鳄鱼咬合力研究在PLoS ONE上面标题：Insights into the Ecology and Evolutionary Success of Crocodilians Revealed through Bite-Force and Tooth-Pressure Experimentation 神皇上帝去看看吧，给我们个详细的分析

中国发现新的史前人物种？云南省发现三个头骨，活在14500-11500年前，据说和智人共同生存 James Owen for National Geographic News Published March 14, 2012 A previously unknown type of human—jut-jawed, heavy-browed, deer-eating cave dwellers—may have been identified via Stone Age bones from southern China, according to a controversial new study. The "mystery human fossils" might even represent an entirely new species that existed alongside our own as recently as 11,500 years ago, according to a team of Chinese and Australian researchers.Or the fossils might represent an especially early migration of so-called modern humans out of Africa and into East Asia, the team suggests.Or—as some critical scientists have said—the evidence may tell us something we already know: People come in all shapes and sizes.(Related: "New Type of Ancient Human Found—Descendants Live Today?")Primitive Humans Held On Past Heyday?"We have discovered a new population of prehistoric humans whose skulls are an unusual mosaic of primitive features, like those seen in our ancestors hundreds of thousands of years ago," evolutionary biologist Darren Curnoe of the University of New South Wales, said via email."In short, they're anatomically unique among all members of the human evolutionary tree," added Curnoe, a co-author of the new study of the "Red Deer Cave people," published online today in the journal PLoS ONE.The study was principally based on the remains of at least three individuals from Maludong (or Red Deer Cave) in Yunnan Province (map)—fossils that had been excavated in 1989 but hadn't been studied until now.Among the human remains was an abundance of bones from an extinct species of giant deer—suggesting the cave people were hunters with a taste for venison.Stone and antler tools were also found, some of which were likely used to prepare the deer for dinner, researchers say.The team also analyzed a partial skeleton found in 1979 in neighboring Guangxi Province. That human specimen had been encased in stone until the study team removed and reconstructed it.(Read "Malapa Fossils: Part Ape, Part Human" in National Geographic magazine.)The Red Deer Cave LookThe Red Deer Cave dwellers' unusual features included a flat face, a broad nose, a jutting jaw that lacked a chin, large molar teeth, a rounded braincase with prominent brow ridges, and thick skull bones, the researchers say.Their brains were "moderate in size," Curnoe added.Despite this seemingly primitive human design, radiocarbon dating of charcoal from the fossil deposits suggests the Red Deer Cave people lived just 14,500 to 11,500 years ago, the team says—a time by which all other human species, such as Neanderthals, are thought to have died out.That date would make the Red Deer humans even more recent than the famous Homo floresiensis from the Indonesian island of Flores—itself a disputed potential human species. Discovered in 2003, the Flores "hobbits" are dated to no later than 13,000 years ago.(Read "The People Time Forgot: Flores Find" from National Geographic magazine.)Potential New Human Species?The study team is so far reluctant to call their find a new human species."One

棕熊吃海象应该是食腐

郊狼水中攻击鹿

一些大猫和熊的头骨比较图左是大熊猫，右是老虎(不知什么亚种)太阳熊，懒熊太阳熊，懒熊，亚洲黑熊雄性孟虎，科迪亚克棕熊

西虎最新记录220公斤个体？ AVA上的GuateGojira传的资料，一月在远东研究人员捕捉到了头220公斤的雄虎，在五月的杂志上提到： “Last January, Hebblewhite got to do something few wildlife biologists have been fortunate enough to experience: track a large, radio-collared adult male tiger through its habitat in the Russian Far East. Now nearly a half-year later, he still gushes about the experience. Hebblewhite’s Russian counterparts have nicknamed the massive 220-kilogram (nearly 500 pounds) tiger “Sheriff.” http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fwww.cfc.umt.edu%2Fnewsletters%2FCFCNewsletter.pdf&urlrefer=36d5ef12f907d77122eb9a40d42ae213

合趾猴可以跟谁斗一下？流浪猫，你有这家伙的体型数据吗？它是最大的长臂猿。

红毛猩猩的战斗力如何？我想大家来说说红毛猩猩的斗力。我总是觉得它的力量肯定是非常巨大的，可是看了它很多视频（野生和动物园）它真的显得很温柔，甚至过于温柔，和人们不停地玩耍。如果它和脾气粗暴多的黑猩猩打，会不会吃亏？

斑鬣狗杀死幼年非洲野狗南非的Londolozi保护区

眼镜王蛇吃大蜥蜴过程据说这条眼镜王是本公园有史以来最大的一条，有6米！？蜥蜴大概0.9米

第二大蜥蜴到底是谁？是新几内亚的crocodile monitor还是东南亚的water monitor(水巨蜥)? 请教鳄王归来一下......

螺钉肩膀是怎么回事? 刚看完, 可是这个螺钉肩膀到底是谁? 又是谁把这个人代替了?

遭到美洲狮毒手的狼是头3岁的母狼, 大约40公斤重.

魔鬼鱼和翻车鱼那个更大? 它们两那个能长了更大?

欧亚猞猁VS倭黑猩猩双方雄性PK, 谁胜算大?

有史以来最大的毒蛇是什么? 我想知道有没有比现代眼睛王蛇更大的毒蛇, 史前巨大的蟒蛇倒是有好几种可是毒蛇这方面就很少看到了. 那位高手能指教下, 谢谢.

恐鳄VS大白鲨用白鲨最大个体吧

一头104公斤的雄性美洲虎巴西Emas国家公园

霸王龙最大个体VS巨犀最大个体霸王龙有能力打败有史以来最大的陆地哺乳动物吗?

公欧亚猞猁VS母猎豹平均体重，死斗。

薮猫VS袋獾捕鸟高手PK大头的塔斯马尼亚魔鬼

山狐VS金色胡狼谁的捕食能力更强?

渔貂VS薮犬成年雄性个体PK, 薮犬用平均体重, 渔貂用大亚种的也没关系.

灰狐狸VS小熊猫能赶走红狐狸的灰狐狸PK有强大咬合力的小熊猫.

虎猫VS非洲金猫雄性平均体重PK, 雌性平均体重PK.

浣熊VS侧纹胡狼两个比较杂食的家伙PK.

欧林猫VS豹猫再来一个小猫科PK. 都是雄性平均体重.

薮犬VS丛林猫小型捕食者PK.

熊狸VS狼獾这两个体型差不多, 让它们斗.

疣猪VS北美大角羊正面冲突, 谁赢?

渔猫VS隐肛狸曾经有弄死过母花豹的凶猛渔猫PK马达加斯加的最强哺乳类杀手

南非狒狒VS科莫多龙狒狒能自保吗?

云豹VS袋狼公云豹PK塔斯马尼亚带狼, 虽然袋狼早已灭绝了但作为有袋动物它的咬合力惊人.

美洲狮VS双峰骆驼山狮能否捕杀这个庞然大物?

尼安德特人VS班鬣狗尼安德特人能否自保? (不拿任何武器)

金雕的体型我从来就没有真正得见过金雕的体重, 身长, 翼展, 这方面的资料. 谁有请发上, 谢谢了.

驼鹿VS美洲虎公驼鹿能否自保?

雪豹VS野猪条件1: 雪豹可以偷袭条件2: 两者正面PK

虎头海雕VS豺世界上最重的老鹰PK凶猛的亚洲野狗.

狞猫VS鬃狼雄性, 平均体重. PK

恐爪龙VS南非长角羚恐爪龙能否度过那长角? 长角羚体重优势明显.

哈佩雕VS狼獾雌哈佩雕VS雄狼獾

大羚羊VS长颈鹿非洲两大巨兽, 如果发生了冲突谁会胜出?

尼罗鳄最大个体VS泰坦巨蟒非洲最大的食肉动物PK有史以来最大最恐怖的蛇, 谁吃谁?

亚洲金猫VS东部郊狼神秘的亚洲金猫遇上了有部分狼混血的东部郊狼, 谁会胜出?

渔貂大个体VS欧洲野猫渔貂常常猎杀家猫(是否真的?), 比家猫高一个档次的欧洲野猫它能否搞定? 渔貂投5.5公斤的雄个体, 野猫用法国的雄猫, 平均6.4公斤.

袋獾VS虎猫/狞猫袋獾恐怖的咬合力能否克服两位猫科的体型优势? 都是公兽PK.

角鼻龙VS非洲野牛前提是野牛不逃跑, 下定决心要杀死这个对它来说奇怪的动物. 谁赢?

金色胡狼VS郊狼胡狼是欧亚大陆大亚种, 来自高加索地区. 郊狼来自加州,体型小,体重应该不如高加索胡狼. 死斗, 谁会胜?

湾鳄最大个体VS犹他盗龙双方在浅水/河岸地区为了一头牛尸体发生对抗, 谁厉害?