History Series / LifeOnOurPlanet

** The ''Deinonychus'' are depicted running down their ''Arkansaurus'' prey, when looking at their skeleton shows they couldn't sustain such chases, instead replying on ambush attacks. The arms on the models pronate when they run and their feathering is less than accurate. They're also presented as an example of sophisticated social behaviour evolution, but evidence for this is dubious at best.

** ''Smilodon'' is shown preying on an adult ''Titanis'', but the species of ''Smilodon'' that lived with ''Titanis'', ''S. gracilis'', was by far the smallest species, and would've barely even come up to the ankle of ''Titanis'' in life, and would have been far too weak to bring one down, let alone with the ease displayed here. For that matter, the fact that it's hunting one at all is completely unrealistic, as given their respective sizes, S.gracilis probably wouldn actively flee from a confrontation with Titanis. It is also too pantherine in shape when ''Smilodons'' had longer and more laterally compressed muzzles.

** ''Smilodon'' is shown preying on an adult ''Titanis'', but the species of ''Smilodon'' that lived with ''Titanis'', ''S. gracilis'', was by far the smallest species, and would've barely even come up to the ankle of ''Titanis'' in life. It is also to pantherine in shape when ''Smilodons'' had longer and more laterally compressed muzzles.

** ''Triceratops'' is shown to be only able to fend off ''Tyrannosaurus'' by grouping together as a large herd, but there's no evidence of ''Triceratops'' living in more than small family units, or that they even needed herds to defend themselves from ''Tyrannosaurus'' (given that they were about the same size). It is also shown galloping away similar to a horse when their leg anatomy cannot do that.

** The juvenile ''T. rexes'' are accurately depicted with Jane-like proportions, as well as slender builds and feathers. The scene where they appear also references the hypothesis that ''Tyrannosaurus'' may have hunted in packs, with the younger ones acting as "herders" while the adults ambush.

* ArtisticLicenseBiology: A teenage mammoth goes down to a single cave lion jumping on its back when their modern relatives are capable of running with several lions on their back barely slowed down at all.

** The ''Deinonychus'' are depicted running down their ''Arkansaurus'' prey, when looking at their skeleton shows they couldn't sustain such chases, instead replying on ambush attacks. They're also presented as an example of sophisticated social behaviour evolution, but evidence for this is dubious at best.
** ''Triceratops'' is shown to be only able to fend off ''Tyrannosaurus'' by grouping together as a large herd, but there's no evidence of ''Triceratops'' living in more than small family units, or that they even needed herds to defend themselves from ''Tyrannosaurus'' (given that they were about the same size).

** The ''Allosaurus'' has strange proportions, with a much too small head, eyes facing too forwards, a long and skinny neck, gangling limbs, and skin covered in armour and spines, of which there is no evidence. In fact, skin impressions from ''Allosaurus'' show that it had ''very'' tiny scales, to the point where it would have looked like leather from most distances.
** To a lesser degree, the ''Tyrannosaurus'' skull proportions are also unusual. The eyes are spaced really widely apart, the top of the head is smooth and lacks the prominent post-orbital crests it had, and the teeth inside the mouth are way too small and numerous (just the front of the upper jaw has sixteen teeth, which is ''twice'' the number there actually were).
** ''Smilodon'' is shown preying on an adult ''Titanis'', but the species of ''Smilodon'' that lived with ''Titanis'', ''S. gracilis'', was by far the smallest species, and would've barely even come up to the ankle of ''Titanis'' in life.

** The ''Edmontosaurus'' model is based on the species ''E. regalis'', which was replaced by the longer-skulled ''E. annectens'' by the end of the Cretaceous.

** ''Dunkleosteus'' is depicted with an oddly shark-like body, and with very smooth skin. As this is a bony fish, the actual animal did not look like this, and had armored plates instead of smooth skin.

** The ''Cameroceras'' has embedded cuttlefish-like eyes when they should be more like nauitiloids with buried eyestalks.

* TheWorfEffect: A pair of ''Smilodon'' take down a ''Titanis'' with minimal effort in order to sell the narrative of how sabre-toothed cats and other mammalian carnivores outcompeted the terror birds, resulting in the latter's extinction.... [[ArtisticLicensePaleontology Though in real life this wasn't what happened]].

* CurbStompBattle: A ''Smilodon'' effortlessly takes down a ''Titanis'' with minimal effort. Its partner did not even have to join in.

** To a lesser degree, the ''Tyrannosaurus'' skull proportions are also unusual. The eyes are spaced really widely apart, the top of the head is smooth instead of knobby, and the teeth inside the mouth are way too small and numerous (just the front of the upper jaw has sixteen teeth, which is ''twice'' the number there actually were).

* ShownTheirWork: A couple.

** A ''Liopleurodon''-like pliosaur is shown dying out in the K-Pg extinction event, despite them having already become extinct more than twenty million years prior (given the narration refers to merely as a "marine reptile" it might be a lazy attempt to pass it off as a polycotylid, an unrelated lineage of short-necked plesiosaurs, or a mosasaur).

* AlwaysABiggerFish: In episode 2, a juvenille ''Dunkleosteus''[='=] jaws can't crack an ammonite's shell... but an adult's can.

** ''Triceratops'' is shown to be only able to fend off ''Tyrannosaurus'' by grouping together as a large herd, but there's no evidence of ''Triceratops'' living in more than small family units.

** A ''Liopleurodon''-like pliosaur is shown dying out in the K-Pg extinction event, despite them having already become extinct more than twenty million years prior.

** It's stated like ''Lystrosaurus'' died out because it was TooDumbToLive, unable to recognize predators. There's zero evidence of this at all, and dicynodonts were still successful up until the end of the Triassic.

** A ''Leopleurodon''-like pliosaur is shown dying out in the K-Pg extinction event, despite them having already become extinct more than twenty million years prior.

The series is produced by Silverback Films and Creator/AmblinEntertainment, even having Creator/StevenSpielberg executive produce and Creator/IndustrialLightAndMagic provide effects.