Black Gouldian finch family: male, female, and juveniles. This image accompanied the report, "Genetic Incompatibility Drives Sex Allocation and Maternal Investment in a Polymorphic Finch," by S.

The bird, named Jester, was hand-reared after its parents tossed it from the nest A Gouldian finch tossed from its nest by its parents is thriving after being hand-reared by staff and students at ...