and banditry. However, researchers have found that due to a large reservoir in the area, the plateau has a rich collection of fauna. For example, there are at least 199 listed species of migratory birds that pass through the Ennedi. Other examples of fauna include the West African crocodile, also known as the desert crocodile, that once existed throughout the Sahara at a time of more abundant rainfall (see Neolithic Subpluvial). A striking characteristic of this population of crocodiles is dwarfism, which developed due to their isolation, making them unusual (other such remnant populations are or were found in Mauritania and Algeria). They survive in only a few pools in river canyons in the area, for example, the Guelta d'Archei, and are threatened with extinction. The last lions (West African subspecies) in the Sahara also survived here until they became extinct in the 1940s due to increased land use and hunting/poaching. Any surviving scimitar oryx antelopes and Sudan cheetah still alive in the wild are likely to be found in the remote regions of the Ennedi Plateau. Researchers used camera traps to identify an isolated population of North African ostrich that was discovered to still be living in the protected area. It has been suggested that the cryptid Ennedi tiger (a supposed surviving sabertooth cat) may also live there. Gazelles and antelopes are also known to be present in the area. Poaching and hunting have decreased the number of species in the area. Lastly, the discovery of the fish species P. senegalus and P. normani are of particular interest to researchers. The identification of these species in the Sahara desert shows the connection between the Ounianga lakes and Lake Chad. The researchers sampled during the day and the night with landing nets and other observations to conduct their study. Finally, there are only seven species of fish found in the Ennedi, according to researcher Daget. Flora A total number of 2,173 species of flora are native to Chad, and some of the first flora researchers in the area back in the 1950s included R. Corti, H. Gillet, R. Maire, and P. Quézel. There are currently over 525 species of flora that have been listed in the Ennedi. Specifically, researcher Gillet used a classification system to describe 7 main life forms for the 526 species of flora found: 41.3% therophytes, 3.0% geophytes, 5.1% helophytes, 1.1% hydrophytes, 7.0% hemicryptophytes, 18.4% chamaephytes, 15.1%