One unique species I saw here which was something I saw for the first time on my visit there was the Clear Creek gambusia (Gambusia heterochir), a species of fish in the family Poeciliidae. The whole extent of this species distribution range is on a parcel of private land in Menard County, Texas. The IUCN lists them as Vulnerable. The group I saw at Inks Dam National Fish Hatchery were the only ones in captivity. Unfortunately I am not allowed to publically share the photograph I took of them, otherwise I would...