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The first animals created a world hospitable to complex life formsLeeds, UK (SPX) Mar 19, 2014 The first animals may have oxygenated the Earth's oceans - contrary to the traditional view that a rise in oxygen triggered their development, according to a study published in Nature Geoscience. Professor Simon Poulton from the School of Earth and Environment at the University of Leeds, who is a co-author of the study, said: ?A major rise in atmospheric oxygen has long been proposed as the main driver for the evolution of our earliest animal ancestors. Our work suggests that the initial evolution ... read more |
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 Diversity in UK gardens aiding fight to save threatened bumblebees New Technique Sheds Light on Human Neural Networks Pocket diagnosis Famous paintings help study the Earth's past atmosphere Salamanders shrinking due to climate change Loblolly pine's immense genome conquered | .. |
 New insights into the origin of birds Mark Puttick and colleagues investigated the rates of evolution of the two key characteristics that preceded flight: body size and forelimb length. In order to fly, hulking meat-eating dinosaurs had ... more | .. |
 Large mammals were the architects in prehistoric ecosystems Researchers from Denmark demonstrate in a study that the large grazers and browsers of the past created a mosaic of varied landscapes consisting of closed and semi-closed forests and parkland. The s ... more | .. |
 Pigment or Bacteria? Researchers Re-examine the Idea of 'Color' in Fossil Feathers Paleontologists studying fossilized feathers have proposed that the shapes of certain microscopic structures inside the feathers can tell us the color of ancient birds. But new research from North C ... more | .. |
 An ancient 'Great Leap Forward' for life in the open ocean It has long been believed that the appearance of complex multicellular life towards the end of the Precambrian (the geologic interval lasting up until 541 million yea ... more |
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 Oldest bit of crust firms up idea of a cool early Earth With the help of a tiny fragment of zircon extracted from a remote rock outcrop in Australia, the picture of how our planet became habitable to life about 4.4 billion years ago is coming into sharpe ... more | .. |
 The ups and downs of early atmospheric oxygen A team of biogeochemists at the University of California, Riverside, give us a nontraditional way of thinking about the earliest accumulation of oxygen in the atmosphere, arguably the most important ... more | .. |
 Evolution stuck in slime for a billion years Tasmanian researchers have revealed ancient conditions that almost ended life on Earth, using a new technique they developed to hunt for mineral deposits. The first life developed in the ancie ... more | .. |
 Oldest bit of crust firms up idea of a cool early Earth With the help of a tiny fragment of zircon extracted from a remote rock outcrop in Australia, the picture of how our planet became habitable to life about 4.4 billion years ago is coming into sharpe ... more |
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 How evolution shapes the geometries of life Why does a mouse's heart beat about the same number of times in its lifetime as an elephant's, although the mouse lives about a year, while an elephant sees 70 winters come and go? Why do small plan ... more | .. |
 Theory on origin of animals challenged: Animals needs only extremely little oxygen One of science's strongest dogmas is that complex life on Earth could only evolve when oxygen levels in the atmosphere rose to close to modern levels. But now studies of a small sea sponge fished ou ... more | .. |
 Ancient reptile birth preserved in fossil Ichthyosaur fossil may show the earliest live birth from an ancient Mesozoic marine reptile, according to a study published in PLOS ONE by Ryosuke Motani from the University of California, Davis, an ... more | .. |
 Giant mass extinction may have been quicker than previously thought The largest mass extinction in the history of animal life occurred some 252 million years ago, wiping out more than 96 percent of marine species and 70 percent of life on land - including the larges ... more |
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 Mass extinction may not cause all organisms to 'shrink' The sizes of organisms following mass extinction events may vary more than previously thought, which may be inconsistent with the predictions of the so-called 'Lilliput effect,' according to a study ... more | .. |
 Researchers discover 'epic' new Burgess Shale site in Canada Yoho National Park's 505-million-year-old Burgess Shale - home to some of the planet's earliest animals, including a very primitive human relative - is one of the world's most important fossil sites ... more | .. |
 'Steak-knife' teeth reveal ecology of oldest land predators The first top predators to walk on land were not afraid to bite off more than they could chew, a University of Toronto Mississauga study has found. Graduate student and lead author Kirstin Brink alo ... more | .. |
 Mass extinction happened fast: study Something wiped out nearly all life on Earth more than 250 million years ago, and whatever unleashed this mass die-off acted much faster than previously thought, scientists said Monday. ... more |
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 Mars One building simulated colony to vet potential colonists Math wizards stand ready to join Malaysia Airlines search Planes chase satellite sightings of suspected debris Astronomers Looking for Clues to Water's Origins Soyuz Docking Delayed Till Thursday as Station Crew Adjusts Schedule Software glitch most probable cause of Soyuz TMA-12 taking two day approach | .. |
 Forest emissions, wildfires explain why ancient Earth was so hot The release of volatile organic compounds from Earth's forests and smoke from wildfires 3 million years ago had a far greater impact on global warming than ancient atmospheric levels of carbon dioxi ... more | .. |
 Strange marine mammals of ancient North Pacific revealed The pre-Ice Age marine mammal community of the North Pacific formed a strangely eclectic scene, research by a Geology PhD student at New Zealand's University of Otago reveals. Studying hundred ... more | .. |
 Largest evolutionary study of sponges sheds new light on animal evolution Sponges are an important animal for marine and freshwater ecology and represent a rich animal diversity found throughout the world, from tropical climates to the arctic poles. For evolutionary ... more | .. |
 Pompeii-style volcano gave China its dinosaur trove A treasure trove of fossilised dinosaurs and other long-extinct species in northeastern China was created, Pompeii-style, by an erupting volcano, scientists said Tuesday. ... more |
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 University of Hawaii scientists make a big splash Researchers from the University of Hawaii - Manoa (UHM) School of Ocean and Earth Science and Technology (SOEST), Lawrence Livermore National Laboratory, Lawrence Berkeley National Laboratory, and U ... more | .. |
 How did we get 4 limbs? Because we have a belly All of us backboned animals - at least the ones who also have jaws - have four fins or limbs, one pair in front and one pair behind. These have been modified dramatically in the course of evolution, ... more | .. |
 Scientists reveal why life got big in the Earth's early oceans Why did life forms first begin to get larger and what advantage did this increase in size provide? UCLA biologists working with an international team of scientists examined the earliest communities ... more | .. |
 Mapping Amino Acids to Understand Life's Origins Only 20 standard amino acids are used to build proteins, but why exactly nature "chose" these particular amino acids is still a mystery. One step towards solving this is to explore the "amino acid s ... more |
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