Plains

Panthera atrox (American Lion)

North America's Ice Age lion

Diprotodon

Pleistocene giant of Australia

Thylacoleo carnifex

Australia's "lion" with a marsupial bite

Sivatherium

Shiva's horned giant of giraffids

Gorgosaurus

Laramidia's long-legged tyrant

Hippopotamus gorgops

The high-eyed hippo of deep time

Magyarosaurus

A little titanosaur from an island world

Masiakasaurus

Madagascar's forward-toothed hunter

Cervalces latifrons (Broad-Fronted Moose)

The Pleistocene's broad-browed moose

Haast's Eagle

The moa-hunter of ancient New Zealand

Gastornis

Eocene giant with a powerhouse beak

Thylacosmilus

The saber-tooth that wasn't a cat

Andrewsarchus

Big skull, bigger mystery

Embolotherium

Asia's Eocene battering-ram giant

Dinocrocuta

Not a hyena-just built like one.

Elephant Bird

Madagascar's lost giants of the egg

Equus giganteus

Big horse of Ice-Age America

Irish Elk

The deer with antlers like doorways

Kentucky Warbler

Masked jewel of the forest floor

Common Yellowthroat

Masked singer of the marsh edge

Mourning Warbler

Hooded shadow of the thickets

Asian Water Monitor

The canal-cruising giant of Asia

Ackie Monitor

Small goanna, spiny-tail swagger.

Red Ackie Monitor

Small goanna, big attitude-spiny tail!