The Goodfellow's tree kangaroo joey spends months inside its mother's pouch developing.

Add Yahoo as a preferred source to see more of our stories on Google. The birth is "incredibly important" for the threatened species, conservationists say [Chester Zoo] The birth of a rare tree ...

The birth is "incredibly important" for the threatened species, conservationists say The birth of a rare tree kangaroo joey at Chester Zoo is a "major milestone" for the threatened species, ...