Seventy thousand years ago, the sea level was much lower than today. Australia, along with New Guinea and Tasmania, formed a connected landmass known as Sahul. Around this time—approximately 65,000 years ago—the first ...
Archaeology
Apr 26, 2024
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2547
Just as water moves through a river, rivers themselves move across the landscape. They carve valleys and canyons, create floodplains and deltas, and transport sediment from the uplands to the ocean.
Earth Sciences
Apr 25, 2024
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53
A group of researchers have expanded conventional knowledge on a critical enzyme that controls cell migration. In a publication in the journal Nature Communications, they reported that phosphoinositide 3-kinase (PI3K) not ...
Cell & Microbiology
Apr 24, 2024
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32
Migration and reproduction are two of the most demanding events in a bird's annual cycle, so much so that the vast majority of migratory birds separate the two tasks into different times of the year.
Plants & Animals
Apr 18, 2024
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98
With long legs and large wings, the white stork is a prominent star of the pageant that is animal migration. Flying from Europe towards Africa in autumn, and then back again in spring, birds can be seen taking to the sky ...
Plants & Animals
Apr 17, 2024
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1
Whether by way of Attenborough, Disney or National Geographic, the iconic scene is familiar to many. The ground trembles and clouds of dust swirl as enormous hordes of large animals thunder across the African savanna, cross ...
Plants & Animals
Apr 12, 2024
1
197
In 1490, Leonardo da Vinci wrote, "If you cause your ship to stop and place the head of a long tube in the water and place the outer extremity to your ear, you will hear ships at a great distance from you."
Plants & Animals
Apr 9, 2024
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388
The curvature of a surface determines the migration behavior of biological cells. They preferentially move along valleys or grooves while avoiding ridges. These findings, published in the journal Proceedings of the National ...
Cell & Microbiology
Mar 18, 2024
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2
A pair of planetary scientists, one with the University of Milan, the other with Columbia University, has found evidence that the exodus of hominins out of Africa approximately 1 million years ago may have been driven by ...
The population of bowhead whales that migrates between the Bering and Beaufort Seas each year is a conservation success story, with today's population nearing—if not exceeding—pre-commercial whaling numbers. But climate ...
Plants & Animals
Feb 21, 2024
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