The breeding of this species is highly important due to the fact that the birth rate of male hippos has fallen in contrast to the female one.

The first one being also a male that was sent to Zurich Zoo and the last one being a female named Matima, that died a month and a half later due to a sudden pulmonary edema.

Also in their own exhibits the area features sitatungas, pygmy hippos, Southern white rhinos and South African cheetahs.

[8][7] Water World consists of two big pond and an elevated kiosk that offers a view of the whole zoo.

This area is home to a family of greater rheas (two of which are leucistic), capybaras, Patagonian maras, llamas and giant anteaters.

Other zoo residents, that do not belong to any particular attraction are the greater flamingoes, the Indian crested porcupine, the European bee-eater, the serval and more.

In December 2015, two male Asian elephants, named Leso and Myo, arrived at the park from Emmen Zoo in the Netherlands.

One of this programs was developed by WWF Russia and the Russian Academy of Sciences in collaboration with the Ministry of Natural Resources in Russia, the European Endangered Species Program of EAZA (EEP) of this species, Sochi Natural Park and other key partners.

[1] In 2011, PELARGOS, an independent non-profit civil company, was founded by the zoo's owner and the park's co-owner at the time, Rudy Rallis.

Since its creation, PELARGOS has carried out a number of important projects in collaboration with some of the most respected and recognizable conservation organizations in Greece.

More recently PELARGOS has also gone ahead with initiatives financed by third parties such as, the Niarchos Foundation and the Green Fund of the Ministry of Environment.

The station mostly helps young seals that lost their mothers due to weather conditions, until they can be reintroduction in the National Marine Park of Alonnisos Northern Sporades.

[10] In June 2015 the zoo received three griffon vultures from ANIMA's rehabilitation facility, where they had arrived exhausted or poisoned.

During their stay in the zoo, they were able to regain strength and reinforce their social behaviour, so as to be reintroduced successfully in the wild.

The Greek Green Party took Attica Zoological Park to court claiming animal welfare issues in 2011.

In April 2011, a provisional order was issued by the Athens Court temporarily prohibiting the operation of the dolphinarium.

[12] BBC sent a correspondent to cover the story[13] and the controversy was presented in an article by Lauren St John in The Sunday Times.

[14] In August 2011, the Greek court issued a decision declaring itself not competent to pass judgement on the case.

[16] The zoo's owner stated that they could not sedate the animals, because anesthesia in big cats, such as tigers and lions, takes 5 to 6 minutes to kick in and that would put the park's visitors and staff in danger.