Term: Black swan, Description: species of bird, Question: Do black swan cygnets typically know both of their genetic parents?, Answer:No
Fact1: Up to one-quarter of monogamous black swan pairs are same-sex, with males taking over a female's nest to raise her young without her Fact2: One-third of monogamous black swan pairs show extra-pair paternity, with the male aiding the female in raising another male's offspring  Fact3: A cygnet is a juvenile swan 