Top Ten Best Species to Bring Back from Extinction

With the wooly mammoth's cloning in progress and a sheep being cloned back in 1999, which animal do you think humanity should consider the most bringing back to life?
The Top Ten
1 Wooly Mammoth
2 Tyrannosaurus Rex Tyrannosaurus, meaning "tyrant lizard", from the Ancient Greek tyrannos, "tyrant", and sauros, "lizard" is a genus of coelurosaurian theropod dinosaur. It also had a tremendous bite force, the strongest of any Dinosaur and living terrestrial animal. Its bite force reached up to 12,800 pounds (roughly 5805 Kilograms).
3 Mauisaurus
4 Smilodon Smilodon was a saber-toothed cat from North and South America that lived 1.5 million to 10,000 years ago. It had a short tail, but very strong legs and paws for catching big prey. It was also 7.2 feet (2.2 meters) from nose to tail. ...read more.
5 Pliosaurus
6 Kronosaurus
7 Neanderthal
8 Sauropods
9 Nyctosaurus Nyctosaurus is a genus of pterodactyloid pterosaur, the remains of which have been found in the Niobrara Formation of the mid-western United States, which, during the late Cretaceous Period, was covered in an extensive shallow sea.
10 Homo Erectus
The Contenders
11 Paisley Terrier
12 Megalodon The megalodon is an extinct species of shark which was about 59 feet (18 meters) long and hunted in the seas until about 1.5 million years ago. It was similar to today's great white shark-but three times longer and 20 times heavier. ...read more.
13 Haast's Eagle
14 Dunkleosteus
15 Thylacine The thylacine was the largest known carnivorous marsupial of modern times. It is commonly known as the Tasmanian tiger or the Tasmanian wolf.
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