Explanation:

Both the statements are correct. 

• It is the only floating National Park in the world, the Keibul Lamjao National Park located on the Loktak Lake is the last natural habitat of the 'Sangai' (Rucervus eldii eldii), the dancing deer of Manipur. 
• This is the last natural habitat of the brow-antlered deer (Sangai) the dancing deer of Manipur. In the 1950s, it was believed that the brow-antlered deer(Rucervus eldii eldii) had become extinct in the country. However, it was subsequently re-discovered in Manipur. 

Hence option 3rd is correct.