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Shooting at Michigan splash pad leaves 'nine, maybe 10 victims': authorities
Gunfire erupted at a splash pad in the Detroit suburb of Rochester Hills, leaving as many as 10 people wounded, authorities said.
A new study has found that preserved ancient hominin DNA from tens of thousands of years ago can be recovered from sediments from archaeological sites.
Geologists have generally considered archeological sediments as unimportant byproducts of excavation. However, a team led by researchers in Germany has found that DNA and other biomolecules can be extracted from these sediments.
“The retrieval of ancient human and faunal DNA from sediments offers exciting new opportunities to investigate the geographical and temporal distribution of ancient humans and other organisms at sites where their skeletal remains are rare or absent,” said senior author Matthias Meyer in a news release.
The authors will share findings in the journal Proceedings of the National Academy of Sciences. They examined blocks of sediment recovered decades ago from the Denisova Cave in Siberia and soaked in a plastic resin. The blocks were then sliced and examined under a microscope.
The Denisova Cave is an archeological site that has produced artifacts from Neanderthals and Denisova hominins, another ancient hominin species. Archeologists believe the cave may have been used as a toilet by ancient hominins 30,000 to 40,000 years ago.
The researchers successfully extracted "substantial amounts" of Neanderthal DNA from just a few milligrams of sediment. Even from such a small amount of sediment, they were able to identify the sex of the individuals and match them to bone fragments that were also discovered in the cave.
“The Neanderthal DNA in these small samples of plastic-embedded sediment was far more concentrated than what we typically find in loose material," said lead author Diyendo Massilani in a news release. "It is amusing to think that this is presumably so because they used the cave as a toilet tens of thousands of years ago.”
The findings show that the vast stockpiles of archeological sendiments stored in labs all over the world could be a new frontier for discovery as a "a vast untapped repository of genetic information."
"The study opens up a new era of ancient DNA studies that will revisit samples stored in labs, allowing for analysis of sites that have long since been back-filled, which is especially important given travel restriction and site inaccessibility in a pandemic world," said geologist Mike Morley in a news release.
Gunfire erupted at a splash pad in the Detroit suburb of Rochester Hills, leaving as many as 10 people wounded, authorities said.
The Edmonton Oilers' offence exploded in Game 4 to beat the Florida Panthers 8-1.
Canadians would get more than $1 billion in unclaimed benefits each year through an automatic tax filing system, according to a report published by the Parliamentary Budget Officer (PBO).
Donald Trump blamed immigrants for stealing jobs and government resources as he courted separate groups of Black voters and hardcore conservatives in battleground Michigan on Saturday.
The owner of a northern Ont. camp is continuing to clean up after an intense storm that prompted a tornado warning Thursday ripped through the area breaking his dock and downing trees.
The City of Calgary declared a local state of emergency Saturday morning in response to the latest developments in a major water main break that is impacting the city.
Toronto police are appealing for witnesses and information as they deploy a “significant amount of resources” into the investigation of the fatal shooting of a 16-year-old boy in Scarborough on Saturday afternoon.
Prime Minister Justin Trudeau says he has concerns with how conclusions were gathered in a spy watchdog report.
London put on a display of birthday pageantry Saturday for King Charles III, a military parade that marked the Princess of Wales ' first public appearance since her cancer diagnosis early this year.
Fancy Pokket owner Mike Timani has decided to create a 220-foot long flat bread to celebrate its 35th anniversary.
If certain goals that are in the Paris Climate Accord aren't met, the existence of polar bears in the Hudson Bay may come to an end.
In an attempt to invite one of the most popular recording artists in the world to the land of living skies – the City of Swift Current has offered to rename itself in honour of Taylor Swift.
More than a dozen dogs arrived by Cargojet early Thursday morning to the People for Animal Wellbeing Shelter to find a permanent place to call home in New Brunswick.
Peggy's Cove, N.S., is one of the most famous locations in the Maritimes. Recent visitors were treated to more than just the iconic landmark.
Hundreds of fans lined up to meet the Trailer Park Boys in Dartmouth, N.S., Tuesday, as Ricky, Bubbles and Julian promoted their new brand of potato chips.
Car break-ins plague Canadians across the country, but instead of worrying about theft, a northern Ontario woman is cleaning up a big mess that she says will not be covered by insurance after a black bear broke into her Honda Civic and took a nap.
Members of a Hutterite colony in southern Alberta have potentially built the world's tallest structure made of Popsicle sticks.
A dog who spent the first three-and-a-half years of his life suffering and almost a year at a shelter has found his forever home, according to the BC SPCA.