With 6.8 billion people alive today, it's hard to fathom that humans were ever imperiled. But 1.2 million years ago, only 18,500 early humans were breeding on the planet--evidence that there was a real risk of extinction for our early ancestors, according to a new study.... read more ›
Genetic bottleneck hypothesis
The Youngest Toba eruption has been linked to a genetic bottleneck in human evolution about 70,000 years ago; it is hypothesized that the eruption resulted in a severe reduction in the size of the total human population due to the effects of the eruption on the global climate.... see more ›
100,000 Years From Today
We will also have larger nostrils, to make breathing easier in new environments that may not be on earth. Denser hair helps to prevent heat loss from their even larger heads. Our ability to control human biology means that the man and woman of the future will have perfectly symmetrical faces.... see details ›
9,000 years ago (7000 BC): Jiahu culture began in China.... view details ›
Yes, people just like us lived through the ice age. Since our species, Homo sapiens, emerged about 300,000 years ago in Africa, we have spread around the world. During the ice age, some populations remained in Africa and did not experience the full effects of the cold.... continue reading ›
In the next 1,000 years, the amount of languages spoken on the planet are set to seriously diminish, and all that extra heat and UV radiation could see darker skin become an evolutionary advantage. And we're all set to get a whole lot taller and thinner, if we want to survive, that is.... continue reading ›
The study states that this mass extinction differs from previous ones because it is entirely driven by human activity through changes in land use, climate, pollution, hunting, fishing and poaching. The effects of the loss of these large predators can be seen in the oceans and on land.... continue reading ›
That mutation would be highly unlikely, considering our existing body physiology. Furthermore, flying isn't of much evolutionary use to humans, so it is not a trait that would be selected for through natural selection.... see more ›
World population is expected to increase from 7 billion today to over 9 billion in 2050. A growing population is likely to increase pressures on the natural resources that supply energy and food. World GDP is projected to almost quadruple by 2050, despite the recent recession.... view details ›
Q: If human babies cannot survive on their own, how did the first human baby survive on its own? A: Either they appeared as grown-ups by magic, or they were nursed by their one-mutation-away-from-Homo-sapiens parents.... read more ›
Homo sapiens, the first modern humans, evolved from their early hominid predecessors between 200,000 and 300,000 years ago. They developed a capacity for language about 50,000 years ago. The first modern humans began moving outside of Africa starting about 70,000-100,000 years ago.... see more ›
This day calculation is based on all days, which is Monday through Sunday (including weekends). So if you calculate everyyear one-by-one Twelve Thousand years ago, you will find that it was November 10, 9978 before 12000 years since the date November 10, 2022.... continue reading ›
Humans looked essentially the same as they do today 10,000 years ago, with minor differences in height and build due to differences in diet and lifestyle.... read more ›
New University of Melbourne research has revealed that ice ages over the last million years ended when the tilt angle of the Earth's axis was approaching higher values.... continue reading ›
While most of The Day After Tomorrow is safely in the realm of science fiction, there is some real science to back up concerns about potentially irreversible changes in our climate within a couple of decades that would affect our communities, health, infrastructure, and ecosystems.... continue reading ›
Humanity has a 95% probability of being extinct in 7,800,000 years, according to J. Richard Gott's formulation of the controversial Doomsday argument, which argues that we have probably already lived through half the duration of human history.... read more ›
By 2050, about 75% of the world population will be living in cities. Then there will be buildings touching the sky and cities will be settled from the ground up. Roads will be built up to several floors. And to move around, the buildings will be connected to the skywalk.... see more ›
What is clear however, is that all organisms are dynamic and will continue to adapt to their unique environments to continue being successful. In short, we are still evolving.... see details ›
In the last half-billion years, life on Earth has been nearly wiped out five times—by such things as climate change, an intense ice age, volcanoes, and that space rock that smashed into the Gulf of Mexico 65 million years ago, obliterating the dinosaurs and a bunch of other species.... continue reading ›
Scientists tell us the best way to protect endangered species is to protect the special places where they live. Wildlife must have places to find food, shelter and raise their young. Logging, oil and gas drilling, over-grazing and development all result habitat destruction.... view details ›
"There is no evidence of climate change scenarios that would render human beings extinct," Michael Mann, a distinguished professor of atmospheric science at Penn State and author of "The New Climate War: The Fight to Take Back Our Planet (opens in new tab)" (PublicAffairs, 2021), told Live Science in an email.... see details ›
Human extinction, also known as omnicide, is the hypothetical end of the human species due to either natural causes such as population decline from sub-replacement fertility, an asteroid impact, or large-scale volcanism, or to anthropogenic (human) causes.... see more ›
In ancient history, probably the Toba extinction event (~70,000 years ago) would have been the closest to the human race actually dying out.... continue reading ›
How do humans cause extinctions? Many species have become extinct because of human activities such as hunting, overharvesting, the conversion of natural ecosystems to cropland and urban areas, pollution, and other alternations or destruction of natural environments.... view details ›
- Ordovician-silurian Extinction: 440 million years ago.
- Devonian Extinction: 365 million years ago.
- Permian-triassic Extinction: 250 million years ago.
- Triassic-jurassic Extinction: 210 million years ago.
- Cretaceous-tertiary Extinction: 65 Million Years Ago.
That said, modern pet parents pay close attention to dog breeds, and if one were on the edge of extinction, a kennel club or charity would likely step in and help preserve the breed. Due to modern recordkeeping and an increased interest in dogs, the chances of any breed disappearing completely are slim.... see details ›
Finally, the most probable fate of the planet is absorption by the Sun in about 7.5 billion years, after the star has entered the red giant phase and expanded beyond the planet's current orbit.... continue reading ›
Humans have certainly had a profound effect on their environment, but our current claim to dominance is based on criteria that we have chosen ourselves. Ants outnumber us, trees outlive us, fungi outweigh us. Bacteria win on all of these counts at once.... read more ›
The fossil record indicates that Homo sapiens has been around for 315,000 years or so, but for most of that time, the species was rare—so rare, in fact, that it came close to extinction, perhaps more than once.... view details ›
A: No. If humans are extinct, then the Homo genus is dead. No other species can jump into it. It is possible that other species can evolve intelligence (Pan is a possibility, if they survive, but I think I would like Vulpes of Felis more), but they will not be the Homo genus and thus not humans.... continue reading ›
But if the upper estimate of species numbers is true - that there are 100 million different species co-existing with us on our planet - then between 10,000 and 100,000 species are becoming extinct each year.... see more ›
Five great mass extinctions have changed the face of life on Earth. We know what caused some of them, but others remain a mystery. The Ordovician-Silurian mass extinction occurred 443 million years ago and wiped out approximately 85% of all species.... view details ›