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Top News In சைபீரியன் புவி தொழில்நுட்பம் ஆராய்ச்சி நிறுவனம் Today - Breaking & Trending Today

Dallas sees temperatures rise 80 degrees as snow vanishes in central U.S.


Dallas sees temperatures rise 80 degrees as snow vanishes in central U.S.
Matthew Cappucci, The Washington Post
Feb. 23, 2021
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Brandon Fisher carries drinking water he was given by volunteers at an apartment complex without water Tuesday, Feb. 23, 2021, in Dallas. Two local bartenders took it upon themselves to bring a truck of drinking water to distribute to residents that have not had running water for over a week. (AP Photo/LM Otero)LM Otero/Associated Press
The forecast in the central U.S. has been one of weather whiplash in the past week. Much of Texas was enjoying unseasonable summerlike warmth less than a week after enduring the coldest air mass to overspread the Lone Star State since 1989. ....

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Over 70% of Siberian migratory birds have stopped visiting Pakistan


Over 70% of Siberian migratory birds have stopped visiting Pakistan
Dried up and contaminated water bodies, hunting and netting identified as major causes
Welcome no more: Siberian migratory birds which made their way to Sindh every winter season, have largely stopped coming due to various reasons. Photo: file
KARACHI:
The number of migratory birds coming in from Siberia has declined drastically over the past three decades. Around 150,000 birds, including local and migratory waterfowl, were estimated to have landed at 12 aquatic stopovers , which is 70% less than in 2017-2018, according to a survey conducted during the winter season.
The migratory birds usually arrive in Pakistan at the end of August and begin leaving in February. The birds are all gone by March. ....

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Mammoth DNA Breaks Record for World's Oldest Sequence


The First Example of Hybrid Speciation in Ancient DNA
The new study has also amplified the ability for researchers to track the evolutionary process of speciation – the formation of new and distinct species. A
Nature press release states that this process generally occurs “over time periods that are thought to be beyond the limits of DNA research.”
A tusk from a woolly mammoth discovered in a creek bed on Wrangel Island in 2017. (Credit: Love Dalén)
Nonetheless, the scientists’ study of the mammoth DNA suggests that there was not one, but two different lineages of mammoth alive during the Early Pleistocene in the region of what is now eastern Siberia. Adycha and Chukochya are believed to be members of a species that spawned the woolly mammoth, but Krestovka appears to come from an unknown, and possibly entirely new, mammoth lineage. Tom van der Valk, the study’s lead author and a bioinformatician at the University of Uppsala in Sweden, explains the ....

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