First (draft/unedited) questions:

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  More (not sure there's been any! RC) information, please, on the types of mammoth, their geographical distribution and the timeline of this migration.

• Did humans follow the Woolly Mammoth to find sources of unfrozen water. Or could Woolly Mammoths get all their water from their food? Eating snow doesn't seem to be a good idea.

• This is most interesting. I wonder too, if mammoths shared the same capacity for memory as their descendants, our modern-day elephant. Interestingly enough, you begin to see the extreme importance of an elephant's memory when it comes to locating water in arid places. I saw this on TV recently a programme which said Elephants can remember a source of water they had once visited FORTY YEARS AGO!

• This 'blazing a trail' theory sounds ok until you get onto the frozen steppes. If you stand on a small hillock you can see for 30 kilometres in all directions so who needs a mammoth?

• If I was early man following a trail I wouldn't be salivating at the sight of mammoth - I'd pick on something more my own size like an antelope.

• "Walking with Beasts" programme http://www.bbc.co.uk/beasts/evidence/prog6/index.shtml refers to woolly mammoths being spread across "cold, dry plains" from Ireland, across Europe and Russia to the Western half of the US. Blazing a trail suggest finding a way through jungle - although jungle is such a vague term - so presumably it was other types of mammoth blazing the trail, but not woolly ones.