1.   These rocks contain the fossilised remains of extinct animals.

2.   Although the layers of rock appear barren, they contain the fossilised remains of extinct animals, and clues to the lifestyle of our predecessors.

3.   And as biomechanics has proceeded on a swell of technological advances, such as increases in computing speed, it has also turned its attention to extinct animals.

4.   A fossil is an extinct animal.

5.   Extinct animals like the dodo are popular pets.

6.   However, Stanford anthropologist Richard G. Klein, who identified extinct animals at the excavation site and is one of the co-authors on the report, remains unconvinced.

7.   Once they could recognize these structures, the team had little trouble reconstructing the colors of other extinct animals, Parker says.

8.   Scientists now believe they can bring back extinct animals such as dodo birds.

9.   The park will have three sections devoted to existing wildlife, extinct animals and mythical creatures.

10.   What emerged was a mastodon, an extinct elephantlike animal.