гей онлайн

Russellnem

An ancient ‘terror crocodile’ became a dinosaur-eating giant. Scientists say they now know why
русское гей порно
A massive, extinct reptile that once snacked on dinosaurs had a broad snout like an alligator’s, but it owed its success to a trait that modern alligators lack: tolerance for salt water.

Deinosuchus was one of the largest crocodilians that ever lived, with a body nearly as long as a bus and teeth the size of bananas. From about 82 million to 75 million years ago, the top predator swam in rivers and estuaries of North America. The skull was wide and long, tipped with a bulbous lump that was unlike any skull structure seen in other crocodilians. Toothmarks on Cretaceous bones hint that Deinosuchus hunted or scavenged dinosaurs.
Despite its scientific name, which translates as “terror crocodile,” Deinosuchus has commonly been called a “greater alligator,” and prior assessments of its evolutionary relationships grouped it with alligators and their ancient relatives. However, a new analysis of fossils, along with DNA from living crocodilians such as alligators and crocodiles, suggests Deinosuchus belongs on a different part of the crocodilian family tree.

Unlike alligatoroids, Deinosuchus retained the salt glands of ancestral crocodilians, enabling it to tolerate salt water, scientists reported Wednesday in the journal Communications Biology. Modern crocodiles have these glands, which collect and release excess sodium chloride.

Salt tolerance would have helped Deinosuchus navigate the Western Interior Seaway that once divided North America, during a greenhouse phase marked by global sea level rise. Deinosuchus could then have spread across the continent to inhabit coastal marshes on both sides of the ancient inland sea, and along North America’s Atlantic coast.

The new study’s revised family tree for crocodilians offers fresh insights into climate resilience in the group, and hints at how some species adapted to environmental cooling while others went extinct.

With salt glands allowing Deinosuchus to travel where its alligatoroid cousins couldn’t, the terror crocodile settled in habitats teeming with large prey. Deinosuchus evolved to become an enormous and widespread predator that dominated marshy ecosystems, where it fed on pretty much whatever it wanted.

“No one was safe in these wetlands when Deinosuchus was around,” said senior study author Dr. Marton Rabi, a lecturer in the Institute of Geosciences at the University of Tubingen in Germany. “We are talking about an absolutely monstrous animal,” Rabi told CNN. “Definitely around 8 meters (26 feet) or more total body length.”

stanley20698566

AV直播福利视频：可以在线看美女大秀直播的真人午夜直播平台,海量激情爽片无广告手机免费看. 下载app

真人美女大秀_小姐姐视频直播_播你想看的！----> 真爱旅舍聊天室 <---- 卖肉，大尺度黄直播，免费视讯


极品美女激情裸聊视讯show ----> 台湾辣妹影音视讯聊天室 <---- 深夜福利，劲歌热舞，美女视频


夫妻视频真人秀官网 ~ 提供最精彩的小仙女颜值直播 ----> Live173直播视讯Live秀 <---- 激情美女~免费裸聊


青色波波要色地址, 成人人妻小说网, 成人伦理人妻小说, 引诱人妻成人小说, 成人之美小说阅读, 色姐姐成人文学网, 色大姐电影院图片, 色悠悠综合网, 色狗狗中文综合网, 成人阁第四色影院, 成人之美影院, 色阁最快的快播影院, 快播名人阁影院, 免费成人之美网站快播, 女人成人玩具使用快播, 快播成人玩具娃娃视频, 18成人之美女游戏图片, 色姐妹网, 杜雷斯a片, live173破解, 天天色综合图片, 夜夜撸在线视频, go2亚洲区免费影片卡通, 173交友视频聊天室, 包养美女网, 破解色情守门员, 真爱旅舍视频, 女人坊美女视频聊天室, 女性成人玩具用法视频, 爱就爱吧聊天室香香, 173视频站, 迪吧现场高清视频

黄色成人变态小游戏色情网, 成人午夜色情视频, 色狗快播成人电影, 快播色狗成人伦理电影, 日本成人电影成人av快播, 境外成人网站网址, 境外成人网址, 成人床上小游戏, av成人电影在线免费观看, 免费视讯聊天av6, 美女图片, 上海龙凤, 女性聊天室, 色播网, 完美情人论坛鱼讯, 视讯美女聊天, 美女在家视频跳舞, 淫兽学院漫画, 情色贴图区, 同城午夜聊天室, 同城交友聊天室, 同城交友网络聊天室

真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室真愛旅舍視頻聊天室