1.   An extinct bird or animal cannot be recreated.

2.   Modo It rhymes with dodo, that extinct flightless bird.

3.   The largest egg in the collection is the size of a watermelon, the product of an extinct bird called the aephyornis.

4.   Unenlagia, paleontologists said, could thus be considered a cousin of Archaeopteryx and other extinct reptilian birds, the two lineages stemming from a common ancestor.