Palaeontologist says osteoporosis could have been major contributor, brought on by a lack of minerals in habitat from climate change.
More than 20 calves born although park keepers say there could be more.
Two cargo jets purchased to supply goods bought on internet to remote Siberian locations.
Colourful election as bears, tigers and half-naked gymnasts vote in record-breaking result.
Bones of 11 extinct giants discovered, plus one woolly rhinoceros: but why did they die here?
Nematodes moving and eating again for the first time since the Pleistocene age in major scientific breakthrough, say experts.
It almost looks like a lawn mower being pushed across a frozen river. What's going on?
Yakutian huntsmen said the new draft law threatens traditional dog breeding.