Science

If large carnivores go extinct, must the ecosystem collapse?
Either because of their large size or because humans are at the top of the food chain, we pay more attention to large carnivores that are also higher up the food chain. As a result, we subconsciously believe that large carnivores are more important in the ecosystem than small, herbivorous animals. One cannot help but wonder if the ecological balance will be upset if large carnivores become extinct, and if the ecosystem will eventually become irreparable and collapse.
By Milton Braganza3 years ago in Earth
How did mankind come to be? Understanding human origins in one breath
How did mankind come to be? I believe that different people have different ideas, different disciplines have given answers, and different ancient civilizations have their myths. This time let's talk about how paleoanthropology, which specializes in this issue, really sees this question.
By Madison Hart3 years ago in Earth
Why is the silly and unreturnable tilapia not extinct by now?
The silly fish living in the sea, even if the predator nibbles, there is no way to escape, so silly and no power to fight back fish, why is not extinct until now? This fish is called a tilapia, it is slowly moving forward in the water, a seal in its vicinity, slowly approaching the tilapia, after seeing the right moment, the tilapia is a bite, directly biting out a defect, the tilapia can only silently bear, the predator's attack, without the power to fight back, become a "walking buffet ".
By Milton Braganza3 years ago in Earth
The "Marvel animals" on Earth, some immortal, some can survive in the universe!
Focus on nature, one of the most interesting places is the wide variety of animals and plants in nature, often brings a sense of eye-opening, so you know that although humans are very powerful on earth, but not the strongest species, in some ways humans are far from other animals, and this is where humans will always have to learn.
By Aliser3 years ago in Earth
230 pilot whales stranded, half are dead, or produce whale explosion! How scary is the whale explosion scene?
About 230 pilot whales were stranded on the beach near the entrance to Port Macquarie, Australia, and the relevant departments rushed to the scene to work together to rescue them, but the local government department introduced that half of the stranded pilot whales have died.
By Mark Rovich3 years ago in Earth
NASA’s DART Mission Hits Asteroid in First-Ever Planetary Defense Test
After 10 months in space, NASA’s Double Asteroid Redirection Test (DART) – the world’s first planetary defense technology demonstration – is successful and ready to repell asteroids. DART successfully impacted its asteroid target on Monday, the agency's first attempt to move an asteroid in space.
By Faraz3 years ago in Earth
A law of physics that reveals desperate truths, says scientist: I'd rather it hadn't been discovered
Marx once said that "technology" is a real productive force that not only drives human cultural progress and civilization forward but is also the material force that transforms the world.
By Mccord Kosmatka3 years ago in Earth
The supermoon of 2021! Appearing over the southern state of Anhui, Ningxia, the surface of the moon is visible to the naked eye!
Compared to 2020, the year of the Gens, 2021 can be described as a transit year, with economic development returning to the level of 2018 or even better, which is not easy! At the same time, this is also an auspicious year. Tonight, the supermoon of 2021 appeared over the southern state of Anhui, Ningxia, with traces of the moon's surface visible to the naked eye. It was amazing! Yamano couldn't resist grabbing his telephoto lens to record this exciting astronomical sight!
By Orr Hirshman3 years ago in Earth
The US and the West can't sit still! China's nuclear fusion technology has made a major breakthrough and may be able to generate electricity by 2028?
Under the "double carbon" policy of peak CO2 emissions and carbon neutrality, countries have started to look for clean energy alternatives to fossil fuels.
By Bar wall3 years ago in Earth
Back to the grass just smells good! The world's No.1 mobile phone giant returns to China, foreign media: the good old days of Chinese brands are at an end
Samsung does not have much of a share in the domestic market and is even a bit of a "cold" player. But abroad, Samsung's global market share remains number one, and it is currently the only Android "king" that can compete head-to-head with Apple.
By Stajila3 years ago in Earth
The Netherlands is moving more and more! Export 1000 lithography machine hard steel old U.S., foreign media: the situation forced
Thanks to years of huge investment in R&D, Huawei has the world's strongest 5G communication technology and the world's top chip design capabilities. With the combination of Kirin and 5G, Huawei phones have managed to stand out and take up half of the domestic market share. the rise of the Mate series and P series has dealt a fatal blow to Apple! In the face of the rise of Huawei, the United States introduced several rounds of sanctions, and Huawei began to "dance in shackles". After two years, the Mate50 series was finally released. Although the Kirin chip is absent, it has several self-developed technologies such as Kunlun Glass, Beidou Satellite Communication, XMAGE, and Hongxing System 3.0. Instead of giving in, Huawei has started to show its muscles to the US frequently. The US blockade is getting ridiculous!
By Derwall Don3 years ago in Earth
A sword that hasn't rusted in a thousand years actually contains chip technology? Scientists are stunned!
During the Spring and Autumn period, there was not only a military culture represented by Sun Tzu's The Art of War, but also macho thinking like that of Guigu Zi, and the Analects, which emphasized human morality and etiquette. It can be said that a hundred schools of thought contended and a hundred flowers blossomed.
By Lu Da3 years ago in Earth