Zoo keepers at Drusillas Park, Alfriston, have introduced a new Animal Feed Talk for 2014 about one of their most endangered species - the Sulawesi black crested macaques.
Keeper talks take place daily at the zoo on the penguins, otters and lemurs.
Throughout the day visitors are invited to watch the animals being fed and learn a little more about them from the keepers who care for them.
Sulawesi black crested macaques are considered critically endangered in the wild.
Their population has declined by as much as 80 per cent over the last 40 years due to habitat
destruction and hunting.
The group at Drusillas is part of a European conservation programme and the zoo has enjoyed a number of breeding successes since Moteck and Kendari were introduced in 2010.
The pair live together alongside their offspring, two-year-old Tambo and three-year-old Kamala.