Articles tagged with Megafauna
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
A team of researchers has uncovered a previously unrecognised process contributing to the disappearance of ancient megafauna communities across south-eastern Australia. Changing food supply driven by climatic changes or human land use in the Late Pleistocene era might have facilitated the extinction of the biggest herbivores.
New research reveals humans played a significant role in the extinction of woolly mammoths, contributing to population declines and range collapses. The study shows that human hunting, combined with climate change, led to the species' demise in Eurasia thousands of years earlier than previously thought.
New research reveals that blue, fin and humpback whales consume an average of three times more food each year than scientists previously estimated. This increased consumption plays a crucial role in maintaining ocean health and productivity by recycling key nutrients.
Early human arrival on islands may not have contributed to insular fauna extinction. However, anthropogenic activity increased during the Holocene Epoch, accelerating extinctions.
New research suggests climate change, not overhunting by humans, led to the extinction of mammoths and other megafauna in North America. The findings, based on a new statistical modelling approach, show that drastic temperature swings around 13,000 years ago initiated the decline and extinction of these massive creatures.
A recent study suggests that heightened human activities and a severe region-wide aridity spell contributed to the megafauna collapse in Madagascar. The researchers analyzed paleoclimate records from the Mascarene islands, revealing a 'double whammy' of stressors that may have doomed the extinct species.
Researchers found that the loss of grasslands was instrumental in the extinction of many megafauna, including ancient humans like Homo erectus. Tropical forests dominated the region from present-day Myanmar to Indonesia, but began to give way to savannah environments around a million years ago.
Research from Curtin University analyzed ancient DNA to understand the causes of animal extinctions during the Ice Age. The study found that while plant diversity recovered as climate warmed, large animal diversity did not recover, suggesting human hunting was a major factor in megafauna extinction.
A study by Aarhus University and Nanjing University found that cultural evolution, not climate change, was the main driver of historical broad-scale biodiversity dynamics. The researchers identified the spread of agricultural land and Han culture as the cause of the extirpation of five megafauna species from much of China.
A new study published today suggests that a combination of climate change and human activity led to the extinction of Australia's megafauna. The research analyzed fossil data, climate reconstructions, and archaeological information to test scenarios explaining regional variation in megafauna coexistence with humans.
Researchers studied African megafauna diet and gut microbiome, finding correlations between diet composition and microbiome composition. Seasonal changes in diet and microbiome were observed, with some species exhibiting little variability and others showing significant differences.
The study found a significant decline in global freshwater megafauna populations, with large fish species like sturgeons and salmonids facing the highest threats. Conservation efforts have shown some success, but monitoring and protection remain inadequate for many species.
Researchers used images from tourists to study the smalleye stingray, finding individuals migrated hundreds of kilometers along the coastline. The findings highlight the need for more knowledge about this endangered species' ecology and behavior to inform conservation efforts.
Researchers suggest that large, slow-breeding animals require 'demographic safe spaces' to maintain non-negative population growth rates. Conservation efforts for Asian elephants and other species can focus on enhancing survival of females and calves to prevent extinction.
Researchers re-dated giant ground sloth remains, challenging popular hypothesis that megamammals survived into the Holocene. Their findings suggest humans hunted and butchered the animal near a swamp during the end of the Pleistocene.
At least 200 large animal species are declining in population and over 150 are under threat of extinction due to humans' meat consumption habits. Megafauna populations are experiencing a 70% decline, with 59% facing extinction.
Researchers at North Carolina State University found that drones can be used to count and make species-level identifications of marine megafauna, particularly in shallow marine environments. The technology offers a valuable platform for scientists and conservationists to study populations and inform conservation efforts.
A new study suggests that climate change played a significant role in the extinction of giant Ice Age animals in Australia. The analysis of fossil teeth found that as the climate dried out and became more arid, the diets of these megafaunal herbivores shifted dramatically, reducing their ability to consume certain types of plants.
A team of 43 wildlife experts warns that preventing the extinction of iconic species like gorillas and tigers demands bold political action and financial commitments. The scientists highlight the urgent need to address threats such as illegal hunting, deforestation, and habitat loss.
A global plan is necessary to prevent the extinction of megafauna, including elephants, rhinos, and big cats, which play critical roles in ecosystems. The study highlights the need for coordinated conservation efforts to address threats like illegal hunting, deforestation, and human-wildlife conflict.
A group of international conservation scientists has issued a call for actions to halt further declines of large wild-animal species. The authors emphasize that an extinction crisis is unfolding for megafauna, with 59% of carnivores and 60% of herbivores classified as threatened on the IUCN Red List.
A new study reveals that Ice Age species, including sabre-toothed cats and giant sloths, died off around 12,300 years ago due to a combination of human arrival and rapid warming. The research found that it was only when the climate warmed, long after humans first arrived in Patagonia, did the megafauna suddenly disappear.
A CU-Boulder study reveals burned eggshell fragments indicate humans were collecting and cooking the eggs of now-extinct giant Australian bird Genyornis newtoni. The findings suggest early human predation played a substantial role in the species' extinction, contradicting climate change theories.
Scientists confirm human activity, not climate change, as main driver of megafauna extinction over the last 80,000 years. The study's findings shed light on a long-standing debate and suggest that early humans were responsible for the demise of iconic species such as the woolly mammoth and sabretooth tiger.
A team of researchers has discovered that abrupt warming events played a key role in the mass extinction of megafauna during the last ice age. The study found that rapid warming, not sudden cold snaps, was the cause of extinctions among species such as mammoths and giant sloths.
Scientists successfully extracted DNA from Australia's extinct giant kangaroos, confirming their close relationship with modern macropods. The study also sheds light on the distinct lineage of short-faced kangaroos and highlights the importance of conservation for endangered species like the banded hare-wallaby.
A recent review of evidence suggests that humans were unlikely to have been the primary drivers of megafauna extinction in Australia, with climate change instead being the main culprit. The study challenges long-held assumptions and highlights the complexity of this issue.
Scientists analyzed data from an Antarctic ice core and arrival of modern humans to determine that a combination of human pressure and climate change led to the extinction of many large animals. The research provides insights into the consequences of pressures on megafauna living today, including tigers and rhinos.
A team of researchers from Washington University in St. Louis has found no evidence of nanodiamonds, a key component of the YD impact hypothesis, in sedimentary deposits dating to the Younger Dryas period. The discovery suggests that the catastrophic event thought to have killed off North American megafauna may not have occurred.
A new scientific paper provides strong evidence that humans caused the extinction of Australia's megafauna, rather than climate change. Direct dating methods show that humans and megafauna co-existed for a short time, supporting the argument that hunting led to their demise.
Research by UK and Australian scientists suggests that humans hunted Tasmania's giant kangaroos and marsupial 'rhinos' and 'leopards' until their extinction, contrary to previous climate change theories. The findings provide the first evidence of human involvement in the mass extinction event, which took place around 41,000 years ago.
A new study from Queensland University of Technology finds that climate change caused a series of massive droughts to kill giant kangaroos and other megafauna in south-east Queensland 40,000 years ago. The research provides evidence that the prehistoric big dry was responsible for extinctions, contradicting some theories that humans we...
A study of megafauna extinctions during the late Pleistocene reveals that both climate change and human activities played significant roles in driving species to extinction. The research, published in Science, suggests that humans and climate change were a one-two punch that led to the loss of many large mammal species.
The TOPP program will track the movements of 15 species, including great white sharks and tuna fish, across immense Pacific Ocean areas. Scientists aim to understand migration patterns, diving behaviors, and ocean conditions affecting these marine animals.