Science

After 100 years of disappearance, the "Wolverine" in the United States has reappeared. Why can extinct creatures be resurrected?
In the 19th century, after years of research, a great biologist proposed the survival law of all animals and plants in nature, that is, natural selection. We can also understand natural selection as "natural selection, survival of the fittest", and only species that adapt to environmental changes can stay in their original habitats. If a species cannot adapt to changes in the environment, they end up with only two outcomes, either extinction or migrating to other more suitable habitats.
By Vicky3 years ago in Earth
Will humanity perish if only children under a year old are left?
Friends who say that there are only children under 1 year old and that human civilization will not go extinct have no idea how "stupid" human babies are.
By Vicky3 years ago in Earth
After the astronauts died in the universe, the remains fell into other planets. Could it be the origin of life?
The courage to explore the unknown is an excellent quality engraved in human DNA, and exploration must be accompanied by sacrifice. It can be said that all the achievements of human exploration are intertwined with the sad song of blood and tears
By Vicky3 years ago in Earth
Oxygen on Earth has surged twice before, what would happen if it happened again?
Oxygen is not an "innate" substance to the earth. In the past 4.55 billion years, the oxygen on the earth has undergone a process of "from nothing, from less to more", and in this process, Oxygen does not increase linearly, in fact, oxygen on Earth has exploded twice.
By Vicky3 years ago in Earth
When the temperature reaches 5°C, it will die. Rare species appear in Antarctica and must stay at low temperature all their lives.
The earth is a huge ecosystem, in which there are tens of thousands of species, they all survived after the "baptism" of the earth, so every species is the darling of the earth. It is difficult for us to guarantee that all species in the world have been discovered by us. After all, the world is too big, and there are still many hidden corners, where there may be creatures that we have not discovered before.
By Vicky3 years ago in Earth
It was found that a tree stump was alive, contrary to common sense, and then scientists made new discoveries in the soil
Life is the most precious thing in the world. There is nothing that can measure it. Living things are endless. They multiply and live in the biosphere of the earth. While bringing vitality to the earth, it also makes the whole earth full of vitality, and promotes carbon and water cycles. Provide a chance to survive.
By Vicky3 years ago in Earth
The secret of the lizard's underwater breathing has been found: it has its own "oxygen tank" and can dive for more than 15 minutes
Can lizards breathe underwater? Sounds like a weird question, how can it breathe underwater without gills or amphibious? It's possible to hold your breath underwater.
By Vicky3 years ago in Earth
The megaliths are just an appearance, the origin of the Easter Island megalithic civilization is the dry goods, and archaeology reveals the truth
The boulders on Easter Island have always been a mystery haunting the world, you know, this is an island in the center of the South Pacific.
By Vicky3 years ago in Earth
What is the "end" of immortality? Scientists say "extremely painful", eternal life is accompanied by despair
Introduction: When it comes to the topic of immortality, everyone must want to live forever. Even the first generation of emperor Qin Shi Huang embarked on the road of finding immortality and taking medicine in his later years. So everyone wants to live forever, especially those who are rich and have inexhaustible wealth and wealth, and they want to live longer than anyone else.
By Vicky3 years ago in Earth
Is the sun suspended in the universe?
We often imagine the solar system as if the Sun were at the center of the solar system, not moving, while the eight planets and many other bodies in the solar system are orbiting the Sun in an orderly manner, with the Earth as one of them, which begs the question, is the Sun suspended in the universe?
By Robert Jack3 years ago in Earth
Rewriting Cosmology
As human society develops, we learn more and more about the world outside of Earth. But the more we learn, the more likely we are to overturn what we already know.
By Karen Gillanah3 years ago in Earth
A 300-million-year-old "screw"
It has been three million years since humans were born on earth. With the continuous evolution and development of human beings, we have gradually become the dominant force on earth.
By Karen Gillanah3 years ago in Earth