Vitaly Denisyuk, 37, was first to realise help was needed by frightened people at upstairs windows.

The sound described as ‘crying and giggling’ is the cub’s trademark way to seek attention, the zoo said.

Scientists from Novosibirsk-based Vector are working in Yakutia on a paleo-virus experiment.

Pillars of smoke filmed over the areas hit by last summer’s wildfires despite the current long spell of extremely cold weather.