Animal conservationists across Scotland have got together to celebrate World Animal Day.
The Royal Zoological Society of Scotland has launched a Twitter takeover, sending out a tweet every hour dedicated to some of the most endangered animals within their collections and the conservation projects supporting them.
From Przewalski horses to Partula snails, many species will be highlighted throughout the day, including the Scottish wild cat, a native species rarer than the Bengal tiger which is threatened by a diluted gene pool due to interbreeding with domestic cats.
Also featured will be the vital conservation projects being carried out to protect the near threatened Pallas’s cat in Iran and Mongolia.
World Animal Day on October 4, is a celebration of animal life in all shapes and sizes, as well as highlighting the connection between people and animals that has existed for thousands of years.
Celebrated every October around the feast day of St Francis of Assisi, the patron saint of animals, the international day aims to raise global awareness of improving animal welfare and highlight the plight of threatened species.
The Twitter takeover will last eight hours with RZSS Edinburgh Zoo and RZSS Highland Wildlife Park, the two visitor attractions owned by the Scottish conservation charity.
Jo Elliot, Animal Collection Manager at RZSS Edinburgh Zoo, said: "It’s very important for us to raise awareness of the lesser known animals in our collection and let people know about the valuable work we do.
"As a charity, it’s great to use World Animal Day to draw attention to some of the great projects we are involved in and all the species we are actively helping; Twitter is such a great platform for that."
In the mean time, here is a look back at some of the zoo's best animal photos taken over the years.
Baby armadillo Rica
Weighing a tiny 81 grams at birth and no bigger than a golf ball, Rica was a female three-banded armadillo born to parents Rio and Rodar last year.
Newborn meerkats pups pose for the camera
Three newborn meerkat cubs venture out from the safety of their burrow for the first time.
Scotland's giant pandas
Our infamous giant pandas Tian Tian and Yang Guang and the 'is there a baby/isn't there a baby?' story has kept us all hooked since 2011.
Birth of baby pygmy hippo Adana
Baby pygmy hippopotamus Adana was born at Edinburgh Zoo in 2013, but sadly passed a few months later to the sadness of her keepers.
Yooranah the UK's first baby koala
Yooranah was born in May 2013, but this was the first time the youngster had been big enough to venture out the enclosure for a photograph!
Tiny snow monkey born in the Highlands
The sweet Japanese macaque was born to mother Angara at the Highland Wildlife Park in Kingussie two years ago.
Head keeper, Una Richardson, said at the time: "The baby is fully furred at this stage and currently looks like a little worried old man."
Lynx cub triplets at play
A litter of lynx cubs were born at the Highland Wildlife Park in late May this year - the wild lynx is extinct in Scotland but it is among dozens of species hoping to be reintroduce to Britain by 2030.