Tape measures and scales have been out in force at Whipsnade Zoo in Dunstable as the animal inhabitants lined up for their annual weigh-in.

As part of their regular check-ups, all creatures at the zoo from rhinos to snails have their vital statistics recorded to help keep track of their health and wellbeing.

McCord’s box turtle
This McCord’s box turtle wasn’t the heaviest on show (Joe Giddens/PA)
Red billed hornbills
Red-billed hornbills named Guinea, Mali and Chad weighed as one (Joe Giddens/PA)
Behan the rhino
Behan, the greater one-horned rhinoceros, might have pushed the scales furthest (Joe Giddens/PA)
Tuuli a Przewalski’s horse
Tuuli, a Przewalski’s horse, is weighed by keeper Luke Pharoah (Joe Giddens/PA)
Flambeau butterfly
A flambeau butterfly lands on a clipboard during the weigh day (Joe Giddens/PA)
A partula snail
A partula snail was both weighed and measured by keeper Tom Maunders (Joe Giddens/PA)
Annual weigh-in at Whipsnade Zoo
Inca, the scarlet macaw, is weighed by keeper Rebecca Feenan during the annual weigh-in at Whipsnade Zoo, Dunstable (Joe Giddens/PA)