Migration history of the rat on earth

Did you know that very specific parts of north-west Britain are colonised by Viking mice - mice that originate from Norway? Or that there are mice families in New Zealand whose rodent ancestors come from India?
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A group of scientists have published their findings after a global study of mouse genetics that they say will tell us more about human migration, and where early colonists - going back to the Iron Age - settled many centuries ago. Because, as it turns out, the colonists accidentally took their home-grown mice with them - and mice, like humans, have DNA and genetic patterns that can be identified and classified.

One of the researchers on the project, Jeremy Searle, a professor of biology at York University in northern England, explains:

JEREMY SEARLE

Mice have been moved all throughout the world by people and clearly when you had the voyages of the discoveries, and you had settlements all round the world starting off from western Europe, they took mice with them so mice are now absolutely cosmopolitan around the world.

Identifying the chromosomes originating from these seafaring mice should provide useful data to back up studies such as the Genographic Project, in which the DNA of hundreds of thousands of people around the world is being catalogued with the aim of telling us where our individual ancestors came from and settled.

vocabulary

colonised
di sini, menghuni (biasanya colonise berarti pergi, atau mengirim orang lain agar bermukim dan menguasai here, populated (usually to colonise means to go, or to send other negara lain)

originate from Norway
mula-mulai tinggal di Norwegia sebelum berpindah ke tempat-tempat lain, misalnya, Inggris first lived in Norway before being moved to other places, e.g. Britain

rodent
binatang pengerat, satwa kecil yang memiliki gigi depan besar yang tajam, seperti tikus dan tupai. Jumlah mereka mencakup lebih dari dua pertiga dari keseluruhan mamalia.

human migration
saat dan tempat manusia pindah untuk bermukim (biasanya, di negara lain)

accidentally
tanpa sengaja, secara kebetulan

DNA
kependekan dari deoxyribonucleic acid, bahan kimia yang menjadi sentra gen semua mahluk hidup

are now absolutely cosmopolitan
berasal dari mana saja dan hidup di mana saja

seafaring
menjelajah, berpindah

to back up
mendukung, memberikan bahan faktual tambahan