With the tyrannosaurs settling into the park, Nigel sets his sights on a more recent extinct species - the Wooly Mammoth.
- Adaptation Expansion: Beyond the Wooly Mammoth, Elasmotherium, and Cave Bear, Nigel also encounters and rescues normal wooly rhinos, Megaloceros, and several cave lions.
- Artistic License – Paleontology: Cave lions are depicted as hunting in packs in this episode, even though they were presumably solitary hunters. Per
Word of God, they were related individuals working together to take down prey.
