Related topics: genes · dna sequences

Reverse extinction: Should we redo the dodo?

Woolly mammoths stomp through the Siberian tundra as the giant moa strides the forest floor of New Zealand and Tasmania's dog-like "tigers" stalk their prey under the cover of night. This is not a snapshot of times past, ...

DNA of bacteria crucial to ecosystem defies explanation

Scientists have found something they can't quite explain in one of the most barren environments on Earth: a bacterium whose DNA sequence contains elements usually only found in a much higher organism.

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