Brown

Coryphodon

Big browser of the Eocene wetlands

Pelycosaurs

Permian pioneers of the mammal line

Anteosaurus

Karoo's pre-dinosaur apex hunter

Holy Cross Frog

The desert frog with a cross on its back

Giant Beaver

Ice Age beaver, supersized.

Palaeophis

Eocene sea-snakes, written in vertebrae

Macrauchenia

South America's long-necked mystery mammal

Dinopithecus

The giant baboon of ancient Africa

Doedicurus

Ice Age armadillo with a mace tail

Desmostylus

Pillar-toothed grazer of Miocene coasts

Orange Dream Ball Python

Sunset color, royal python calm

Banana Cinnamon Ball Python

Caramel coils, calm soul.

Archaeoindris

Madagascar's lost giant sloth lemur

Josephoartigasia monesi

Uruguay's titan rodent

Toxodon

The Pampas' hippo-like grazer

Paleoparadoxia

The North Pacific's ancient "paradox grazer"

Yellow Belly Ball Python

Bright belly, bold genetics.

Viper Boa

Looks like a viper, hugs like a boa.

Flathead Catfish

The mottled, flat-headed night hunter

Scallops

The clapping swimmers of the seafloor

Executioner Wasp

Big paper wasp, bigger attitude

Chiton

Eight plates. One unstoppable grip.

Sand Dollar

Coins of the seafloor, built to burrow

Red Paper Wasp

Open-comb builders of the Carolinas