Mating season approaches for Edinburgh's pandas

Edinburgh Zoo's giant panda, Tian Tian. Credit: David Cheskin/PA Archive

Zoo keepers have begun a daily monitoring of the UK's giant panda couple as mating season approaches.

Edinburgh Zoo hopes Tian Tian and Yang Guang will produce a cub this year as the creatures start to show the tell-tale signs they are ready to breed.

There was disappointment last year when the pair did not mate and though Tian Tian was artificially inseminated she lost her foetus at late term.

Panda reproduction is a notoriously tricky process, with females only ovulating once a year.