With each one linked to a sensor in a different display case, the system allows staff to see when an exhibit is in danger of overheating.Last year during a hot spell, staff arrived one morning to find an antique specimen jar -- containing a nearly two-centuries-old tabby cat -- had "blown out" amid the heat.By monitoring temperatures in the display cases, staff at the Grant Museum of Zoology hope they can prevent damage to other exhibits by identifying any needing to be preventively decanted."They are very precious and valuable to us," said Tannis Davidson, head of zoology at the 200-year-old collection home to some 100,000 specimens covering every major animal group."We want to safeguard them for the next 200 years at least so students and researchers and members of public can enjoy the collection and learn more about the natural world," she told AFP.But she said curators were having to deal with a whole "new set of challenges due to climate change and extended long periods of high temperatures within our spaces".Emma Howard Boyd, chair of the independent National Heat Risk Commission, says the impact of climate change is no longer a distant threat but a present-day reality with the cultural sector at the "sharp end".Last month's UK heatwave forced the closure of a number of London cultural attractions including the Young Victoria & Albert (V&A) museum, The Cutty Sark museum ship, Tower Bridge and some galleries at the V&A.And the Met Office said Monday that the UK was entering its third heatwave of the year, although it was not expected to break any records.- Heat, flooding - Art works also require careful monitoring of temperature and humidity levels to prevent damage, according to Claire Teasdale of the National Trust heritage body."We're having more storms. We're having more wet weather and more extreme weather which is affecting everything," said Teasdale who manages the collections at Cragside, a 19th century mansion in northeastern Northumberland.