Factual error: At a stop on the Niger River, before they arrived in Mali, Dirk tells Dr. Rojas of "the angel wing clam" and calls them "Petricola Pholadiformis" and says that "this river is the only place on the earth they are found." Three problems: First, Petricola Pholadiformis are actually called "False angel wing" and are found many places in the world in fresh water (but seldom in the Niger River). Second, what's known as the "Angel wing" shell (no "false" in its name) has "Cyrtopleura Costata" as its scientific name. Cyrtopleura Costata ("Angel wing") is found in salt water. Third, Dirk also said they "glow in the dark"; some varieties of Cyrtopleura Costata shells will glow if exposed to ultraviolet light but none glow from their own internal source. Petricola Pholadiformis shells don't glow at all.
Factual error: While on the yacht on the Niger River, Dr. Rojas points out Asselar on a map. Asselar is about 230 miles northwest of where she points.
Factual error: While in Labbezanga, Dirk returns to the yacht and says "We're going upriver to Gao." When the buoy later detects something, and Dirk begins to call out the coordinates, "16-degrees 20-minutes North, zero." he gets interrupted by Rudi. The problem is that Gao is at 16-degrees 16-minutes north latitude; if they made it up to 16-20N they would have already passed Gao.
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