Bristol Zoo has lost some of its most precious animals after a male warty pig ate his entire critically endangered family - and a rare monkey became lunch for hungry otters.
The two pigs, pictured above in happier times, were found in distressing circumstances when Elvis turned on his piglets and then his own mate.
In another instance, a rare monkey escaped its enclosure and fell into a pond where it was eaten by American otters.
The zoo, which prides itself on its conservation measures, said the deaths have distressed keepers.
A whistleblower has raised concerns about a series of incidents at Bristol Zoo, including a rare pig eating its entire family.Read the full story ›
Bristol Zoo is celebrating the first birthday of one of its pygmy hippos.
Winnie weighed just six kilograms when she was just a few weeks old, but she's grown to just over 80 kilograms.
Keepers will be treating her to a special vegetable birthday cake.
It's a census with a difference - scuba suits and aqualungs alongside the clipboards and pencils.
Yes, staff at Bristol Zoo are conducting their annual census. There are more than 400 species at the zoo and keepers say the population is growing because of successful breeding programmes. But counting the animals isn't always easy. With fish there is no avoiding it -you have to get wet.
Big tanks you can see we do get in those - it's a lot easier to count the animals that way because we can look in all the nooks and crannies.
We need to make sure our records tie up with what we've actually got on our displays. It's very difficult with small animals - we classify them as big groups.
We've got a lot of small fish in big tanks so it's more to do with the breeding. We have a lot of fry coming through that we might miss.
Keepers at Bristol Zoo will begin their annual census today. Over 400 species need to be counted.
The animal stock take is done at the start of every year and gives keepers the opportunity to check their computer records are up to date. Staff say 2014 has been a successful year for breeding - including the birth of pygmy hippo Winnie.
Penguins are all the rage this Christmas, thanks to THAT TV advert but Bristol Zoo is drawing attention to the plight of penguins in Africa, which it warns are at risk of extinction.
The population of African penguins fell 70% between 2001 and 2013 and is continuing to decline.
Every winter, hundreds of African penguin chicks, who have been abandoned by their parents foraging for food, are rescued by a rehabilitation centre in South Africa, in a project led by the Bristol Zoological Society.
This year. the youngsters are coming into the centre in their hundreds from the colonies. The rehabilitation centre is already helping to care for 430 and this number continues to grow faster than expected.
With the price of fish soaring, an extra £20,000 is needed before Christmas to enable food and care to be provided for all the chicks.
There are less than 18,000 breeding pairs left in the wild in South Africa. African penguins are an endangered species so every individual possible needs to be saved to increase numbers in the wild.
Unless conservation organisations intervene, these chicks will starve to death. As African penguin populations are currently facing a crisis due to a diminished food supply near their nesting colonies, there is a substantial risk that this species could eventually become extinct without action.
To find out more about the plight of the penguins, click here.
It's been a record breaking year for bird keepers at Bristol Zoo. Huge numbers of chicks including some endangered species have hatched over the last few months. Among the new arrivals are 10 baby flamingoes - some of which had to be hand reared.
Rob Rouse, keeper at Bristol Zoo, explains what the future holds for Winnie the baby pygmy hippo.
Winnie the pygmy hippo was born at Bristol Zoo Gardens in February and has since enjoyed romping around her enclosure with her father Nato and mother Sirana - who is ferociously protective. Today she was allowed outside for the first time.
Fewer than 2,000 pygmy hippos survive in the wild.