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
2 hours ago
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21
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
23 hours ago
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46
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
Blue whales are fascinating animals. At 24–30 meters in length (longer than a basketball court) they are the largest creatures on Earth. They are also among the rarest. Estimates suggest that there are only about 5,000 ...
Plants & Animals
Apr 22, 2024
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4
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
As part of a team of ecologists, I've been studying aspects of great tit biology at Wytham Woods near Oxford. One aspect of our research is how climate change affects their breeding behavior. So far, our research suggests ...
Plants & Animals
Apr 15, 2024
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9
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
A new set of maps that document the movements of ungulates was published today in the fourth volume of the Ungulate Migrations of the Western United States. The maps in this collaborative U.S. Geological Survey report series ...
Plants & Animals
Apr 11, 2024
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1
Since its introduction in 1951, the UN refugee convention has been the basis for the global refugee system. It defines who a refugee is and outlines the rights they are entitled to.
Social Sciences
Apr 11, 2024
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