It may seem odd how the Deinocheirus is thickly feathered, for something living in a warm swamp. But the coat may indeed be protection from bloodsucking insects, and seeing what happens to the Olorotitan, is an adaptation worth keeping.
The Carnotaurus using vestigial appendages for display sounds counterintuitive, especially since it has horns and other more conspicuous body parts. But, barring the questionable flexibility of abelisaur arms, this makes more sense due to one important difference it has from the likes of bowerbirds and birds of paradise: it's a large-scale predator that needs to be able to ambush prey, which makes it more convenient to have display organs that are vibrant enough to catch the attention of mates, but small enough to be concealed while hunting.
In "Forests" we see Corythoraptor feeding on Ginkgo fruits. Now modern ginkgos are endangered and its speculated to be in part because they lack their original frugivores to disperse their seeds...
The narration says that Tyrannosaurus laid clutches of as many as 15 eggs...and "Hank" starts with only five babies and immediately loses one to a mosasaur, implying that he's already lost most of his clutch by that point.
The series takes place in the end Cretaceous, and while the K-Pg extinction is mercifully not shown, the knowledge that this depicts the last age of the dinosaurs is a sobering subtext.
The Mongol Titan is implied to be one of the largest sauropods to ever exist, but it's only known from a single footprint. What other wonders are completely absent from the fossil record, no more than a pair of feet in the middle of a wasteland?
