Walking

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

Archaeopteryx

Teeth, tail, and feathers-airborne!

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.

American Wirehair

The steel-wool sweetheart

Sphynx

Warm-hearted cat in a velvet suit

Red Aphids

Tiny red sap-sippers, big plant impact

Root Aphids

Small sap-feeders, big ecosystem impact

Waimanu

Penguins at the dawn of diving

Gigantopithecus

Big teeth, big questions

Green Aphids

Tiny sapsuckers, huge plant impact

Woolly Aphids

Tiny bugs, big cottony colonies

Hovasaurus

Madagascar's Triassic water-runner

Pelagornithidae

Giants of the wind, teeth of bone

Sarkastodon

Eocene titan of tooth and bite

Nuralagus

The Balearic King Rabbit

Fleckvieh Cattle

Two jobs. One hardy cow.

Machaeroides

Eocene saber-tooth-without the cat