Veegie wrote:KOH_Church wrote:we are bringing back mammoths by impregnating pigs generation after generation with the semen of a frozen mammoth so i bet we could do it.
No.
yeah....
"Sperm is routinely frozen for in-vitro fertilisation treatment, but it
has to be carefully stored and protected.
The new research showed that it was possible to freeze whole male
mice, or their reproductive organs, and use the sperm extracted from
them to produce offspring.
In one test, sperm were retrieved from the bodies of mice that had
been kept frozen at minus 20C for 15 years, said the Japanese
scientists, led by Dr Atsuo Ogura from the Institute of Physical and
Chemical Research in Ibaraki.
The findings raised the prospect of resurrecting animals that had
remained frozen since the last ice age, 10,000 years ago, when woolly
mammoths became extinct."
-Discovery Channel (Mammoths)
Animal Planet---
"[2006/08/16] -- After an experiment that brought frozen mice back to life, Japanese scientists are now testing the same methods on ancient woolly mammoth remains.
Researchers from the RIKEN Bioresource Centre in Ibaraki, Japan worked with sperm from frozen mice and mice organs in the experiment with mice.
Now, fully intact woolly mammoth bodies have been excavated from Siberian permafrost in order to perform the same procedures.
The researchers believe that it will be possible to bring back the woolly mammoth, as the mice were held for 15 years in a frozen state before their sperm was extracted.
The mammoth's sperm nuclei may be inserted into elephants, as elephants are the mammoth's closest living relative.
Although the Japanese scientists are confident that this set of experiments may bring back prehistoric animals, others are not so sure.
Scientists at the University of Tennessee say that storage temperatures would have to be much lower than the -20 C of the Japanese team's samples to preserve the ancient remains. The U.S. scientists also say there is no guarantee that the DNA would not be damaged.
The Japanese ministries of education and health and the Human Science Foundation of Japan will be funding RIKEN's research."
ok so elephants yeah my bad i kew it was on of the 2 i think it was lions too they want to bring back saber tooth tigers