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6 days ago | 
sciencealert.com | Tessa Koumoundouros
Researchers have found that a spear tip carved from bone, unearthed from Russia in 2003, is as old as 80,000 years. This means the hunting weapon could not have been created by modern humans. Homo sapiens didn't venture into Europe until about 45,000 years ago, so the most likely spear-wielders in this case were the Neanderthals (Homo neanderthalensis).
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6 days ago | 
flipboard.com | Tessa Koumoundouros
If you ever travel back in time to hang out with Homo sapiens around 41,000 years ago, pack some sunscreen – or better yet, a tailored outfit, and …
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1 week ago | 
sciencealert.com | Tessa Koumoundouros
As global warming continues to melt Earth's glaciers, sea level rise hits all new heights. However, in 2024 a different mechanism caused most of this water volume increase. "The rise we saw in 2024 was higher than we expected," says NASA oceanographer Josh Willis.
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1 week ago | 
yahoo.com | Tessa Koumoundouros
As global warming continues to melt Earth's glaciers, sea level rise hits all new heights. However, in 2024 a different mechanism caused most of this water volume increase. "The rise we saw in 2024 was higher than we expected," says NASA oceanographer Josh Willis.
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2 weeks ago | 
sciencealert.com | Tessa Koumoundouros
Aging appears to unlock adult stem cells programmed to create more problematic belly fat cells, new research in mice and human tissues reveals. "This is the first evidence that our bellies expand with age due to the stem cell's high output of new fat cells," says City of Hope endocrinologist Adolfo Garcia-Ocana. These age-specific stem cells, called committed preadipocytes (CP-As), are found in white fat tissue, which is known to increase in humans during age-related weight gain.
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2 weeks ago | 
yahoo.com | Tessa Koumoundouros
Aging appears to unlock adult stem cells programmed to create more problematic belly fat cells, new research in mice and human tissues reveals. "This is the first evidence that our bellies expand with age due to the stem cell's high output of new fat cells," says City of Hope endocrinologist Adolfo Garcia-Ocana. These age-specific stem cells, called committed preadipocytes (CP-As), are found in white fat tissue, which is known to increase in humans during age-related weight gain.
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2 weeks ago | 
sciencealert.com | Tessa Koumoundouros
We can now hear one of the largest and most ancient living organisms on Earth whisper with the tremble of a million leaves echoing through its roots. The forest made of a single tree known as Pando ("I spread" in Latin) has 47,000 stems (all with the same DNA) sprouting from a shared root system over 100 acres (40 hectares) of Utah.
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2 weeks ago | 
sciencealert.com | Tessa Koumoundouros
The macabre world of ancient Egyptian ritual sacrifice may have contributed to the domestication of cats, new research suggests. Mummified cats (Felis catus) were such a common offering to the Egyptian gods around 3,000 years ago that humans started breeding them (along with other sacrificial species). It's estimated ancient Egyptians mummified up to 70 million animals including cats, shrews, falcons, crocodiles, and ibis during their reign in North Africa.
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3 weeks ago | 
sciencealert.com | Tessa Koumoundouros
While most of us take the ground beneath our feet for granted, written within its complex layers, like the pages of a book, is Earth's history. Our history. Research shows there are little-known chapters in that history, deep within Earth's past. In fact, Earth's inner core appears to have another even more inner core within it.
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3 weeks ago | 
sciencealert.com | Tessa Koumoundouros
Life's many disruptions, from injury to festive events, may account for most people's yearly weight gain. In a new peer-reviewed perspective article, researchers argue this may be a key missing factor behind the persistent rise in global obesity.
