Abnormally hot May weather resembles midsummer with air temperatures as high as +35C.
Likely brought some 6,000 kilometres by ancient traders seeking walrus tusks, hunting birds and fur.
Breakthrough in understanding shows that they were fluffy and downy like chicks
'When I came to Yergaki National Park I was blown away by the beauty of the place. It was so stunning it felt unreal'.
Residents marooned on rooftops after snow melt and heavy rain causes Karasul River to burst its banks.
180 metre-long causeway built in sea to reach stricken tanker to prevent more pollution.
Pristine forests around the world's oldest lake go up in flames.
Or is it too expensive to put the environment before the need for energy?
Unique remains give vital clues to man's origins and early travels, say experts.