All 2,500 animals at Whipsnade Zoo in Bedfordshire are being weighed and measured as part of an annual survey.
One of the keepers, Darren Fellows, told ITV News Anglia that they have special scales to weigh the elephants and because the animals response to commands, the task of weighing them is not too difficult.
Click below to watch the interview
More top news
Dry and fine across most parts, with some sunshine.
Tributes have been paid to a keen cyclist from Essex killed in a collision with a Mercedes at Canewdon.
Once any mist and low cloud has disappeared this morning, it will be a largely dry and bright day. Turning more unsettled by Monday.