Twin joeys were born last month at the Lincoln Children's Zoo to Matschie's tree kangaroos Milla and her mate Noru. They were found in Milla's pouch last month, and count as two of the four documented Matschie's tree kangaroo births last year.
The babies are expected to begin poking out their heads or feet as early as May.
On the Net:
Lincoln Children's Zoo, http://www.lincolnzoo.org/