July 22, 2015
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Science
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Say hello to one of Triceratops’ oldest relatives.
Scientists recently discovered the fossilized bones of a striking new species of horned dinosaur in southern Alberta, Canada. The 200-plus fossils are believed to have belonged to four specimens of Wendiceratops pinhornenis–three adults and one young dino.
According to the researchers, W. pinhornenis lived about 79 million years ago. Measuring about 6 meters (20 feet) in length and weighing more than a ton, it sported a parrot-like beak suited to eating scrubby plants. And while the dinosaur likely had a wide frill extending from its neck and horns over the eyes, its most bizarre feature was the giant horn on its nose. It’s the earliest known example of a tall, upright nose horn in the horned dinosaur family.
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Wendiceratops pinhornenis. (Credit: Secret Location Agency)
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March 4, 2015
Mohenjo
Science
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Scientists are going gaga over the recent discovery of a baby woolly rhino.
The pristine specimen of the tiny extinct rhino–the only one of its type ever found–was discovered in permafrost along the bank of a stream in Siberia’s Sakha Republic, The Siberian Times reported.
“At first we thought it was a reindeer’s carcass, but after it thawed and fell down we saw a horn on its upper jaw and realized it must be a rhino,” Alexander ‘Sasha’ Banderov, the hunter who made the discovery, told the Times. “The part of the carcass that stuck out of the ice was eaten by wild animals, but the rest of it was inside the permafrost and preserved well.”
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(Academy of Sciences Republic of Sakha/Siberian Times)
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November 7, 2014
Mohenjo
Science
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Jeff Dornbusch knew there was something odd about a pile of gray rocks he spotted more than a decade ago during a hike in the southern New Mexico desert, and a closer look confirms that he was right.
Dornbusch, a museum volunteer in Truth or Consequences, N.M., relocated those rocks in 2012 and notified local scientists, who identified the rocks as fragments of a 90-million-year-old turtle fossil, the Las Cruces Sun-News reported.
Since then, researchers have returned to the site where the rocks were found and excavated the rest of the turtle.
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Workers from the New Mexico Museum of Natural History (from left, Tom Suazo, fossil preparer; Amanda Cantrell, geosciences collections manager; Jake Sayler, volunteer; and Asher Lichtig, student researcher) excavating the 90-million-year-old turtle fossil on Oct. 29, 2014, about six miles east of Turtleback Mountain, a well-known peak near Truth or Consequences..
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November 22, 2013
Mohenjo
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One of the oldest fossils of a living organism has been dated as being 3 and a half billion years old. The fossil contains evidence of microbes that are some of the oldest living things ever studied by scientists.
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September 13, 2013
Mohenjo
Science
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This is one ancient whale of a tale! An international team of scientists from the National Museums Scotland and the Universities of Glasgow and Edinburgh have completed a years-long project to excavate and assemble the most complete fossil of the world’s largest prehistoric fish.
The specimen suggests that Leedsichthys problematicus grew to a full size of around 50 feet long, twice that of previous estimates, according to a written statement from the University of Glasgow.
The massive fish must have cast an impressive shadow as it swam through the seas about 165 million years ago. With a bony physique, Leedsichthys pioneered an important ecological niche: It was the first of the giant plankton-feeders, whose modern-day equivalents today include the behemoth whale shark.
Research team leader Dr. Jeff Liston of the National Museums of Scotland told The Huffington Post in an email that several significant conclusions can be drawn from the Leedsichthys discovery.
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August 28, 2013
Mohenjo
Science
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Researchers have reconstructed the structure of 4-billion-year-old proteins.
The primeval proteins, described today (Aug. 8) in the journal Structure, could reveal new insights about the origin of life, said study co-author José Manuel Sanchez Ruíz, a physical chemist at the University of Granada in Spain.
Exactly how life emerged on Earth more than 3 billion years ago is a mystery. Some scientists believe that lightning struck the primordial soup in ammonia-rich oceans, producing the complex molecules that formed the precursors to life. Others believe that chemical reactions at deep-sea hydrothermal vents gave rise to cell membranes and simple cellular pumps. And still others believe that space rocks brought the raw ingredients for life — or perhaps even life itself — to Earth.
But it’s difficult to recreate events that happened so far in the distant past.
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The individual molecules within early Earth’s primordial soup that form the basis of life likely developed in response to natural selection.
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July 30, 2013
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Mexican paleontologists say they have uncovered 50 vertebrae believed to be a full dinosaur tail in the northern desert of Coahuila state.
The National Institute of Anthropology and History says the tail is about 15 feet (5 meters) long and resembles that of a hadrosaur or crested duckbill dinosaur.
An institute Monday says it’s not yet possible to confirm the species, but it would be the first full tail of that kind in Mexico.
Paleontologist Felisa Aguilar says they uncovered roughly half of the dinosaur, which was 36 feet (12 meters) long and lived about 72 million years ago.
The excavation took 20 days in the municipality of General Cepeda in the northern state that borders Texas.
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Paleontologists are working to uncover the tail of a dinosaur at a dig site near the town of General Cepeda in northern Mexico. (AP Photo/INAH-Mauricio Marat)
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July 14, 2013
Mohenjo
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A beautiful gem or a scientist’s dream? You can have both, as researchers in Mexico recently discovered after finding the remains of a 23-million-year-old lizard fossil, well preserved with soft tissue samples, in a small piece of amber.
Amber often contains small remains of plants and animals, but it is rare to find complete vertebrates such as this lizard.
While it’s currently too early to confirm the small lizard’s species, preliminary examination suggests the important specimen might be a new species belonging to the genus Anolis. This means that the little guy may provide an invaluable opportunity to learn more about an evolutionarily important and impressively adaptive species.
After all, Anolis lizards have fascinated scientists for years, and have provided researchers with an on-the-ground look at evolutionary processes at work. In 2012, a study involving brown anole lizards in the Bahamas was heralded for its documentation of natural selection, according to LiveScience.
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June 30, 2013
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A new fossilized, cigar-shaped creature that lived about 520 million years ago has been unearthed in Morocco.
The newfound species, Helicocystis moroccoensis, has “characteristics that place it as the most primitive echinoderm that has fivefold symmetry,” said study co-author Andrew Smith, a paleontologist at the Natural History Museum in London, referring to the group of animals that includes starfish and sea urchins. Modern echinoderms typically have five-point symmetry, such as the five arms of the starfish or the sand dollar’s distinctive pattern.
The primitive sea creature, described today (June 25) in the journal Proceedings of the Royal Society B, could even change its body shape from slender to stumpy. Researchers say it is a transitional animal that could help explain how early echinoderms evolved their unique body plans, Smith said.
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During the Cambrian explosion, the diversity of life exploded and bizarre sea creatures such as the Helcocystis moroccoensis flourished.
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May 3, 2013
Mohenjo
Science
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A cavern in Spain may have lured ancient carnivores to their deaths by offering the promise of food and water, new research suggests.
The new study, published May 1 in the journal PLOS ONE, may explain how the carcasses of several carnivore species, including saber-toothed cats and “bear dogs,” wound up in an underground cavern millions of years ago.
“Only the carnivores were daring enough to enter,” said study co-author M. Soledad Domingo, a paleontologist at the University of Michigan. “But they were unable to make their way out.”
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Hyena skeleton found in Spanish cave. Researchers carefully analyzed the type, age, and orientation of fossils like this one to figure out what happened to ancient carnivores.
The researchers reconstructed the history of the cave. Sediments from the surface fell through fissures in the Earth and formed the cave. Young predators were lured in by the promise of food or water, but became trapped. The smell of their rotting carcasses would then attract other predators. Over time, the cave was filled in by flooding, until it became hidden from view.
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