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Newly Discovered: Previously Disputed Or Merely Alleged Species

No such "known" salamander exist in North America. The eastern Hellbender is our largest and can approach 29" (0.98 m). We also have the mudpuppy up to 16" (0.49 m) which I've seen while fishing.
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Exactly, "no such known", but there have been reports in the PNW of giant salamanders.
 
Last edited by a moderator:
AlchoPwn said:
Another article on the Siren Reticulata:
https://www.sciencealert.com/a-new-mythical-giant-salamander-has-been-found-in-florida
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An interesting amphibian. Up my way we have the mudpuppy. It likely out weights the Floridian siren(s). I've seen them at > 16". They have the same externa gills typical of an amphibian that rarely leaves the water. The buggers steal your bait when fishing w minnows on Lake Erie.
https://www.arkive.org/common-mudpuppy/necturus-maculosus/
 
Research team ‘wakes up’ mammoth cell nuclei

The Yomiuri ShimbunNew findings indicate that the resurrection of mammoths is not a fantasy, a research team including members from Kindai University is saying, after cell nuclei extracted from the 28,000-year-old remains of a woolly mammoth were discovered to retain some function.

When placed in the ova of mice, the nuclei developed to a state just before cellular division, according to a paper published Monday in the British journal Scientific Reports.

The team includes researchers from Japanese and Russian universities. It has been working for about 20 years on a project to use cloning to resurrect mammoths, an animal that has long been extinct.

The cell nuclei used in the team’s recent findings were extracted from musculature and other tissue from Yuka, an about 3.5-meter-long female woolly mammoth excavated nearly intact in 2010 from permafrost in Siberia. When inserted into mouse ova, five out of 43 nuclei were observed to develop to a point just before the nuclei would split in two as a result of cell division.

Cell nuclei contain DNA, the so-called blueprint for life, and mouse ova have been confirmed in experiments to have a reparative function for DNA. It is said to be possible that the mammoth’s DNA, damaged as a result of being frozen for a long time, was repaired and its biological functions invigorated.

However, the predivision development stopped before completion in all the ova.

http://the-japan-news.com/news/article/0005600484
 
Wreckless said:
Research team ‘wakes up’ mammoth cell nuclei

The Yomiuri ShimbunNew findings indicate that the resurrection of mammoths is not a fantasy, a research team including members from Kindai University is saying, after cell nuclei extracted from the 28,000-year-old remains of a woolly mammoth were discovered to retain some function.

When placed in the ova of mice, the nuclei developed to a state just before cellular division, according to a paper published Monday in the British journal Scientific Reports.

The team includes researchers from Japanese and Russian universities. It has been working for about 20 years on a project to use cloning to resurrect mammoths, an animal that has long been extinct.

The cell nuclei used in the team’s recent findings were extracted from musculature and other tissue from Yuka, an about 3.5-meter-long female woolly mammoth excavated nearly intact in 2010 from permafrost in Siberia. When inserted into mouse ova, five out of 43 nuclei were observed to develop to a point just before the nuclei would split in two as a result of cell division.

Cell nuclei contain DNA, the so-called blueprint for life, and mouse ova have been confirmed in experiments to have a reparative function for DNA. It is said to be possible that the mammoth’s DNA, damaged as a result of being frozen for a long time, was repaired and its biological functions invigorated.

However, the predivision development stopped before completion in all the ova.

http://the-japan-news.com/news/article/0005600484
Click to expand...

Absolutely remarkable that mammoth cells are still capable of some biological activity after almost 30,000 years.
Sounds like creating a living, breathing baby mammoth is still a very long way off though.
 
Huge fossil discovery made in China's Hubei province

Scientists say they have discovered a "stunning" trove of thousands of fossils on a river bank in China.

The fossils are estimated to be about 518 million years old, and are particularly unusual because the soft body tissue of many creatures, including their skin, eyes, and internal organs, have been "exquisitely" well preserved.

https://www.bbc.co.uk/news/world-asia-china-47667880
 
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