life on earth Archives - Disasters News

Nov42024 by Editor DeskNo Comments

Deep-Sea Rocks Reveal a Surprising Source of Oxygen That Could Support Life Beyond Light’s Reach

Breaking News, Climate Actions, Environment

Oxygen essential to most complex life on Earth, is primarily produced by plants and photosynthetic organisms on land and underwater. However, a new study published in Nature Geoscience unveils a surprising discovery: oxygen production can occur in complete darkness, deep within the ocean where sunlight never penetrates. Scientists, aiming to understand oxygen consumption on the seafloor, unexpectedly observed a rise in oxygen levels in certain deep-sea sediments. This finding puzzled researchers, as it defied the typical expectation of oxygen depletion in such environments. The study found that the source of this “dark oxygen” production lies in polymetallic nodules and metalliferous sediments—concentrated deposits of metals on the ocean floor. These nodules, rich in metals like mang...

New Study Reveals Ancient Origins of LUCA Early Life on Earth

Breaking News, Climate Actions, Idea & Innovations

Once upon a time, Earth was a barren planet. That changed dramatically when, out of the chemistry present during its early history, something began to squirm processing matter to survive, reproduce, and thrive. The nature of that something, and when it first appeared, have puzzled humanity for as long as we have been able to ask, "What am I?" Now, a groundbreaking study has provided some answers, revealing that life emerged surprisingly early in Earth's history. By analyzing the genomes of organisms alive today, scientists have determined that the last universal common ancestor (LUCA) the first organism that spawned all current life on Earth emerged as early as 4.2 billion years ago. Given that Earth is around 4.5 billion years old, this suggests that life began when the planet was s...

Study Reveals Predictable Patterns in Stick Insect Evolution

Breaking News, Environment

In a groundbreaking study, researchers have discovered that the evolution of camouflage patterns in stick insects follows a predictable pattern, challenging the long-held belief that evolution is a haphazard process. The study, led by evolutionary biologist Patrik Nosil from the French National Centre for Scientific Research, examined 30 years of data on Timema cristinae stick insects. Nosil and his team focused on the camouflage traits of these insects, which are essential for their survival as they blend into their environment to avoid predators. The study, conducted along roadsides in the mountains near Santa Barbara, California, involved netting and cataloging over 32,000 insects. The researchers found that in all 10 geographically separated populations, the frequency of green an...