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Kangaroo mother Naddel and her twin
joeys enjoy the sun in their enclosure at the Zoo in Hanover April 25,
2007. Australia's kangaroos are genetically similar to humans and may have
first evolved in China, Australian researchers said
yesterday. (Xinhua/Reuters Photo) Photo
Gallery>>> |
BEIJING, Nov. 19 -- Australia's kangaroos are genetically similar to humans
and may have first evolved in China, Australian researchers said yesterday.
Scientists said they had for the first time mapped the genetic code of the
Australian marsupials and found much of it was similar to the genome for humans,
the government-backed Center of Excellence for Kangaroo Genomics said.
"There are a few differences, we have a few more of this, a few less of
that, but they are the same genes and a lot of them are in the same order,"
center director Jenny Graves told reporters in Melbourne.
"We thought they'd be completely scrambled, but they're not. There is great
chunks of the human genome which is sitting right there in the kangaroo genome,"
Graves said, according to AAP.
Humans and kangaroos last shared an ancestor at least 150 million years
ago, the researchers found, while mice and humans diverged from one another only
70 million years ago.
Kangaroos first evolved in China, but migrated across the Americas to
Australia and Antarctica, they said.
"Kangaroos are hugely informative about what we were like 150 million years
ago," Graves said.
(Source: China Daily)