MADISON, Wis. (SPECTRUM NEWS) – Henry Vilas Zoo announced on Friday that two African Penguin chicks have hatched.

The penguins, named Robben and Dassen, hatched three days apart, according to the zoo’s Facebook page. The first was born on Dec. 30 and the second on Jan. 2.

Robben and Dassen are the seventh and eighth chicks of their parents, the zoo said, who are a Species Survival Plan (SSP) recommended breeding pair.

SSP programs are developed by the Association of Zoos and Aquariums to oversee the population management of select species and enhance conservation of species in the wild, according to the zoo.

The zoo said Robben and Dassen are named after islands in South Africa with active penguin breeding colonies.