标签：自然百科 相关文章
Moreton Bay, on the eastern coast of Australia, is always a rich and diverse ecosystem. Beds of sea grass stretch over miles, providing the foundation for fish, marine mammals and some truly ancient mariners（海员）. Protected areas, like Moreton
自然百科2009年
They are extremely awkward on land, and not exactly graceful in the water. But there's something endearing about these egg-laying mammals. Platypuses can only be found in the rivers, streams and lakes along the east coast of Australia. But they range
自然百科2009年
Experts have revealed what they believe is a previously unknown portrait of Leonado da Vinci. It shows Da Vinci as a middle-aged man with piercing eyes and long flowing hair. The painting was found in December by a medieval historian, studying in the
自然百科2009年
Hi, I'm Patty Kim. Today we are setting our sights on India, a land of deserts and rain forests, modern cities and ancient beliefs. With over a billion people, India is the world's largest democracy, and many say it's a travelers paradise. In truth,
自然百科2009年
Hi, I'm Patty Kim. Today we are setting our sights on India, a land of deserts and rain forests, modern cities and ancient beliefs. With over a billion people, India is the world's largest democracy, and many say it's a travelers paradise. In truth,
自然百科2009年
Hi, its Kasey-Dee Gardner, in this weekend Why Tell Me Why will answer an interesting viewer question. The viewer wants to know why certain species die after they reproduce. So, we're here to find out the answer. Urn, so there are a bunch of species,
自然百科2009年
Off the coast of Boston, scientists scan the horizon for something largehumpback whales. In the busy waters of the Stellwagen Bank, National Marine Sanctuary, whales must navigate around submerged fishing gear. And on the surface, collisions to the s
自然百科2009年
Data released this week by a team of explorers who trekked through the Arctic for three months this spring shows that North Pole will be an open sea during the summer months within 20 years. The Catlin Arctic Survey team, led by explorer Pen Hadow, m
自然百科2009年
Millions of Americans enjoy playing golf. But golf courses are not known to be environmentally friendly. They demand a lot of fresh water, fertilizers and herbicides to keep them looking green. Thats true of most golf courses. But lets look at one th
自然百科2008年
Out of the Blue Ridge Mountains in northwest Georgia, the cold waters of the Conasauga River descend toward Tennessee. Flowing back and forth across the state line, the River's abundant wildlife and unspoiled beauty is a remnant of the past--a fading
自然百科2008年
According to scientists from the National Snow and Ice Data Center and NASA, Arctic sea ice appears to have reached its minimum for the year at nearly 1.7 million square miles. A chilling fact, considering that this is only about 10 % more than the l
自然百科2008年
Volcanoes forged the rocky coast of Cabo de Gata in southeast Spain. But the tides blanket it with reef-like structures built by snails. An algine marine biologist Diego Moreno says this sea of life can be deadly. Filth and contaminants accumulate on
自然百科2008年
Beneath the tourist gondolas on Lake Xochimilco in Mexico lives a creature that resembles a monster. Known as the water monster or Mexican walking fish, the axolotl is type of salamander. The Ambystoma Mexicano, this species, is the axolotl of Xochim
自然百科2008年
Still with so many different beers available around the world,the majority of well-known styles fall into just two categories, ales and luges. Ales which includes dalts,palels,labics, white beer and porters. Unlike the heavy year flavors, luges would
自然百科2014年
Beer is the most popular alcoholic beverage in the world, crafted from natural ingredients it's made and served in most countries around the globe, it's older than ancient Egypt, and has a history of healing what ails you, and whether you enjoy yours
自然百科2014年
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自然百科2012年
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自然百科2012年
She's already lost four babies, at least one to sharks. This new calf would be especially precious. Very little is known about the first days of a calf's life. It's a rare opportunity for Janet to learn more. They are all very close, and they just so
自然百科2013年
In such a frugal environment, the Pika's farming helps to kickstart the food chain. But the Pika itself is a very tasty morsel. Its presence has enabled an uneasy relationship to develop between the two plateau most opportunistic predators, the fox a
自然百科2010年
Hello, everyone. I'm Peddy Kim. Today we're heading off to New Zealand, well known as a thrill seekers' paradise. Hey this is the country that invented bungee jumping of all things. And that's the just the beginning. So get ready and pack your sense
自然百科2010年