Plains

Hyaenodon

Hyena-toothed hunters of deep time

Brontosaurus

Thunder lizard, science icon

Tyrannosaurus Rex

Late Cretaceous king of crushing bites

Brachiosaurus

The high-shouldered sky-browsing sauropod

Pteranodon

Crested ruler of the Cretaceous skies

Short-Faced Bear

Big legs. Short face. Ice Age titan.

Megalania

Pleistocene Australia's giant goanna

Python

Big squeeze, bigger diversity.

Red-Footed Tortoise

Red feet, rainforest traveler.

Thanatosdrakon

Argentina's "death dragon" of the skies

Velociraptor

Swift seizer of the Gobi

Styracosaurus

A horned face full of spikes

Pterodactyl

Not dinosaurs-masters of Mesozoic skies

Repenomamus

The mammal that could tackle dinosaurs

Dreadnoughtus

Patagonia's titan that feared nothing

Iguanodon

Thumb-spiked titan of Early Cretaceous

Polacanthus

Hip-shielded tank of the Cretaceous

Euoplocephalus

Built like a tank, born to browse

Diplodocus

Jurassic icon with a double-beam tail

Sarcosuchus

Super-sized river stalker of the Cretaceous

Old House Borer

Hidden larva, big timber trouble.

Malchi

Tiny mix, huge devotion.

Red Aphids

Tiny red sap-sippers, big plant impact

Root Aphids

Small sap-feeders, big ecosystem impact