Nature

The reproductive organs of whales are hidden in the body
On today's planet, the largest animal in size is the blue whale, but the blue whale's eggs are not the largest. The right whale's eggs weigh 500 kilograms, 20 times heavier than the blue whale's eggs, making it the heaviest animal with the heaviest eggs in the world.
By Bar wall3 years ago in Earth
Italy's plan to save Venice from sinking
enice is a stunning oddity. It is a city built atop around 120 islands, crisscrossed by 177 canals, and is best explored – when on foot at least – via the use of its 391 bridges. It is a watery maze of a city, full of tiny footpaths and tucked away squares, hidden museums and secluded, centuries-old churches.
By Seamons Mahall3 years ago in Earth
All aboard Botswana's Elephant Express
our years ago, Nthoboga Samokwase's father was travelling from the fields where he typically stayed during cropping season towards his home in the village 7km (4.3 miles) away when he had a confrontation with an elephant.
By Seamons Mahall3 years ago in Earth
Reproductive competition is ubiquitous in nature
Reproductive competition is ubiquitous. There is a competition that we can see, for example, male lions fight for the right to mate with lionesses; there is also a competition that we cannot see, for example, sperm competition.
By Bar wall3 years ago in Earth
Top U.S. official: What's more advanced than China and Russia?
In recent years, there have been more and more incidents around the world about the discovery of unidentified flying objects (UFOs). The U.S. Department of Defense had previously disclosed a video confirming that the U.S. military had spotted UFOs and was conducting research on them. Recently, the U.S. media disclosed another video, saying that the U.S. Navy had spotted a UFO approaching U.S. warships and disappearing into the water. A few days ago, the U.S. Department of Defense also confirmed the authenticity of the video.
By Stajila3 years ago in Earth
The mystery of "Ghost Air" is solved
The plane hovered at a high altitude, the captain disappeared, and the cabin passengers passed out as if by magic, the flight was therefore called "ghost flight". Such a situation is described to any person listening to the unimaginable. Fortunately, the scientific explanation was clear later, the plane deviated from the course, a lack of oxygen at high altitudes, resulting in the crash.
By Sukkning3 years ago in Earth
Fungal manipulation of "zombie cicadas"
In 2004, tens of billions of Ruder X cicadas burrowed into the soil in the eastern United States. After up to 17 years of subterranean dormancy, these wake worms feathered into cicadas and are now breaking out of the ground in swarms, eventually estimated to be as many as 30 billion cicadas whose calls will ring out this summer.
By Sukkning3 years ago in Earth
Plugging in the Earth? Asking for heat from rocks
Looking at the Earth from space, we see a beautiful blue planet. Since the blue of the ocean and the green of the forest are cool colors, such an Earth may look refreshing and cool to us.
By Deena Thaddeus3 years ago in Earth
What do you know about human actions that make changes to the earth?
If we talk about disasters on earth, you may more easily think of natural disasters such as tsunamis, volcanoes, and earthquakes. However, because of the continuous human intervention, some unnatural changes are happening continuously. In the past 40 years, through image records, and scientific and technological detection, we can find that this change is intensifying. But at the same time, human beings have also made a lot of actions to improve environmental pollution for this reason. In today's article, I have compiled, because of human actions or for some reason, 10 changes that have occurred on the planet over the decades.
By Bar wall3 years ago in Earth
Why do mother birds always deliberately leave out a few when feeding their babies? Scientists: the great wisdom of birds
It is said that watching animal videos is very healing, but the recent "bird mother feeding children" video makes people feel uncomfortable, because the video of each mother bird mouth with a lot of worms, enough for each child to eat 2-3, but the mother bird is a brain to feed all the worms to the same child, a few children even 1 are The mother bird fed all the worms to the same child.
By Baudamolova3 years ago in Earth
Addicted to killing birds "birding tree"
There is a plant in the world that kills birds that stay on it, but not to fill their stomachs, as if it had reached an evolutionary dead end.
By Stajila3 years ago in Earth
Up to dominate the Earth
Are you blood-sick? Have you ever fainted with anger? Have you ever been stunned by something? The same question you ask animals, the answer is almost always "never", most animals are stunned, but not faint.
By Sukkning3 years ago in Earth