啸风虎 啸风虎
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现代动物的七大神奇祖先 转自化石网 国外媒体列举了现代动物七大最神奇的进化祖先,可以说其改变程度让人惊叹不已。   1、大象的祖先——铲齿象(又称巨型口鼻象)铲齿象   很明显,古生物学家对这种生物的出现感到疑惑不解,因为较短的象牙根本起不了什么帮助,而现代大象也有这样的特征。   2、鲨鱼的祖先——旋齿鲨(又称“多嘴”鲨(WTF-Mouthed Shark))旋齿鲨   旋齿鲨是2.5亿年前极为重要的鲨鱼,下颚较低,呈电锯状。目前,古生物学家还在努力研究这种鲨鱼进食的方法。   3、鳄鱼的祖先——野猪鳄(又称长腿鳄鱼)野猪鳄   古生物学家认为,这种鳄鱼的长腿有助于它们能迅速接近恐龙掠食。事实上,它们还被叫做“恐龙的切片机”。   4、马的祖先——奇角鹿(又称有角的马)奇角鹿   目前,专家们认为奇角鹿会利用头上的奇角相互争斗。而有人则笑称道,它们会利用面部的角作为叉子,相互喂食。   5、乌龟的祖先——半甲齿龟(又称无壳龟)半甲齿龟   约2.2亿面前,乌龟们只是掠食者者们的盘中餐。最后,进化才使得它们有了身上的壳,可做自然防御之用。   6、鲸鱼的祖先——海斗鲸(又称海象脸的鲸鱼)海斗鲸   海斗鲸约生活在350万年前的上新世。它拥有一长一短两颗长牙,长的牙齿可长到3英尺,但十分易碎。   7、人类祖先——巨猿(又称大脚野人)巨猿   巨猿居住于东南亚的丛林中,仅仅依靠植物和水果维生。
【londolozi】Lion Cubs vs Water 两只小狮子在水中玩耍 It is known to most from all walks of life, whether one has an interest in animals or not, particularly cats, large or small, that they do not enjoy water, with the exception of a small handful, like Jaguars and Tigers. Some would argue against this, due to the fact that in various areas of Southern Africa, like the Okavango Delta where Lions are forced to cross large masses of water to get from point A to B, traverse territory and locate prey, we could over rule this statement that cats do not like water. From my experience in the bush, as short as it may be, but across a few parts of South Africa, I have yet to encounter a cat, Lion, Leopard or Cheetah that enjoys water. A cat that will deliberately swim in water to cool down or just spend time in water as a daily ritual. These cats despise water. The unknowns of it, the depths, the darkness, the crocodiles and the grooming procedure post hurtling themselves through any body of water. In plain and simple terms, what we witnessed on this beautiful early afternoon, with all 9 cubs of the Mhangeni pride, was something very special, something I will not forget. We managed to find the Lions in the sand river, on the Southern Bank, however, the adult females had moved out of the river to find refuge in the shade of the Jackalberry trees, overlooking the cubs which lay waiting, patiently for their mothers return. However, the cubs became restless and bored, like any young child would without stimulation and out of pure frustration they began to wrestle. Two of the cubs grabbed my attention as they were situated on a small island in the middle of two flowing bodies of water. Certainly the most dangerous place to fight, however they had no concern and fight they did. We were lucky enough to have some great lighting for these action shots, however as a general rule, when there is a lot of movement from animals and one is trying to freeze that action, ensure a high shutter speed in order to eliminate blurred images. For all of these images, my f-stop was low, and the lighting allowed for a relatively low ISO. For increased shutter speed, increasing your ISO will help alot, but remember the higher it goes, the more “noise” your image will show.
一只老虎在战斗中丧生 Carcass of tiger killed in territory battle foundA territorial fight between two tigers resulted in the death of a 10-year-old male tiger near Maya River at Gejalatti in Bhavanisagar range. The carcass, which was a few days old, was identified by forest officials who were on a routine visit to the area. By then, hyenas and others had consumed much of the flesh. Conservator of forest, Erode, A Venkatesh, visited the spot and said the body was found when the foresters were on a routine visit. "The tigers had a territorial fight. The dead tiger must have been older than the one that killed him," he said. S Bernard, a forest ranger, said there were pug marks in an area of about 40 to 50 sq ft. "The marks revealed that the tigers had begun the fight from the river bank and had fought all around the area," he said. There were other indications in the area that the tiger succumbed in a territorial fight. Its skull was broken, blood spilt around and there were marks of struggle on its body apart from the pug marks on the soil of both the tigers. All these are indications of a ferocious fight, he said. Forest officials said the post-mortem report confirmed that the animal was a 10-year-old male tiger. Tigers are solitary animals that are possessive of their territory. The territorial area maintained by a tiger ranges from 5 km to more than 30 km, depending on its age, availability of prey and territorial conditions. Some reports say tigers in the wild live up to 12 years. However, they are known to live above the age of 15 in captivity.
俄罗斯和中国加强保护老虎和豹子 Russia and China have signed a Memorandum of Understanding (MoU) for cooperation on Amur tiger and leopard conservation that will enhance anti-poaching activities on their borders. The parties have agreed to conduct joint monitoring of population numbers of the Amur tiger, Far Eastern leopard and their prey base, to set up information exchange and to enhance anti-poaching activities on both sides along Sino-Russian border. The MoU for trans-boundary cooperation on the Amur tiger and Far Eastern leopard and their habitat conservation was signed on June 22nd in Harbin by the heads of the environment governance authorities of Primorsky Province of Russia and Heilongjiang Province of China with the assistance of WWF-Russia and WWF-China. “Heilongjiang and Primorsky Provinces are the critical area for conservation of the Amur tiger and Far Eastern leopard. Meanwhile, it is the key economic zone faced with extensive exploitation by two countries. It is our common responsibility to promote the transboundary cooperation between Russia and China, to support sustainable development of the Amur-Heilong eco-region to ensure the health eco-system and meet long term interests of both sides,” said Mr. Dong Jie, Deputy Head of the of Heilongjiang Provincial Forestry Industry. The General Administration of Heilongjiang Forestry Industry administers a quarter of Heilongjiang Province in North Eastern China, including Wandashan and Laoyeling areas, which are the main transboundary corridors for the transfers of the Amur tiger from Russia to China. The MOU was signed with the Wildlife and Hunting Department of Primorsky Province, which manages and supervised the wildlife resources of Primorsky Province in South Eastern Russia including Amur tigers and Far Eastern leopards. “The MoU on transboundary cooperation on the Amur tiger and Far Eastern leopard signed between Heilongjiang and Primorsky Provinces for the first time is of a great importance for nature protection in the region. The newly achieved agreement allows the development of conservation cooperation on the whole border territory of Primorsky Province and two Provinces of China on the related subordinate territories,” said Head of the Wildlife and Hunting Department of Primorsky Province, Vladimir Vasilyev. In October 2012 Sredneussuriisky Wildlife Refuge bordering Heilongjiang Province was established on the Russian side as the transboundary corridor for Amur tiger, connecting Strelnikov Mountain Range in Russia and Wandashan Mountain Range in China. In March a mature tiger male was recorded crossing the border in this area from Russia to China. This winter the tracks of the Far Eastern leopard were registered for the first time over the past 20 years in Poltavsky Wildlife Refuge, which also borders Heilongjiang Province. One of the main aspects of the cooperation is to ensure safe transfers of Amur tigers and leopards from Russia to China and back, as well as to establish a protected area within Sino-Russian transboundary corridor. “Unfortunately, there is a high risk that the animal will be killed due to high levels of poaching. This MoU will allow our colleagues to improve individual protection for each tiger and leopard wondering from one country to another,” Sergei Aramilev, Species Program Coordinator at WWF-Russia Amur branch.The Amur tiger (Panthera tigris altaica) is the largest of the five remaining tiger species. © WWF Russia / Vasilii Solkin Enlarge
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