For Season One
- Did the younger male Mosasaur die? There was mention of the old male trying to drown his rival but it just shows the victor triumphantly swimming to the surface.
- If you look close to the left a few seconds before the older male ascends to the surface, you can see the young upstart swimming off in defeat.
- How do the Dreadnoughtus tolerate the desert environment if very large animals retain a lot of heat?
- Internal air chambers to vent off heat with breathing and lots of surface area to lose heat to the outside air.
- It's also made clear that the desert isn't the typical habitat of the species, with Attenborough's narration explicitly describing the males as "many miles from their rich forest feeding grounds". They simply migrate to the desert to breed, presumably because it's the only terrain open enough for giant sauropods to gather in leks consisting of hundreds of individuals.
- Okay, what is up with the anti-mammal manifesto of the series? The show is no stranger to non-dinosaurian protagonists, but the only mammal seen so far is the fairly unique Cimolodon replacing hadrosaurs as the herbivore cannon fodder.
- Might as well complain about the anti-crocodilian bias in this show. Dinosaurs and certain species thereof are simply what the show chooses to focus on. Doesn't mean that the ones that are absent do not exist.
- Word of God is that the showrunners were simply not given as much time as they wanted to show off as many species as they wanted, especially where mammals are concerned.
- Season 2 amends this somewhat, with Adalatherium getting a focus segment in "Islands". On the crocodilian front we get both Simosuchus and Shamosuchus.
- It's strange that the Corythoraptor are entirely blue, it just makes them very visible to predators.
- During the day at least. Given that their behavior in the series was based on ostriches, it’s likely the group the tyrannosaurid was hunting were all males. Male ostriches are known to guard nests at night by sitting on them, as their coloration makes them not only more difficult to see at night but makes their nests more well hidden by appearing as just a simple mound of earth to any would-be predators, so presumably, the blue colored male Corythoraptors performed a similar function for the same reason.
- Were there honeybees during the Mesozoic? The Therizinosaurus is shown eating honey.
- Proper flowers evolved during the Cretaceous, around 130 million years ago. This spurred the evolution of insects feeding on pollen. Bees are generally believed to be amongst those insects, although a point of discussion is when exactly they would have been fully up and running as honey producers. The oldest unequivocal corbiculate bee note fossil dates back to the very end of the cretaceous, with the show taking place around this time period. As such, it remains a possiblity.
- In the pterosaur nesting colony scene, some blue-faced pterosaurs can be seen in the background. Was it ever stated what species those were supposed to be?
- Not explicitly, but they are likely adult alcione. At the end of the baby alcione's flight scene it is noted that the hatchlings will live in the forest for about 5 years, before they will join the adults foraging on the open ocean. A shot then shows the same blue-faced pterosaurs fly by. Looking closely at their models while at rest in the colony also shows they lack claws, much like the young alcione and nyctosaurids in general.
For Season Two
