Freshwater

Cephalaspis

Head-shielded pioneer of vertebrates

Dinosaurs

One name, a million body plans

Xenoposeidon

England's one-bone sauropod mystery

Dilophosaurus

The twin-crested hunter of Kayenta

Cryolophosaurus

Antarctica's crested Jurassic hunter

Xiongguanlong

A "before-the-tyrants" tyrannosauroid

Phoenix Chicken

Long tail, high style.

Earless Monitor Lizard

Borneo's "hidden-ear" river guardian

Swallow

Masters of the open air

Sarus Crane

Tallest flyer, truest partner

Common Grackle

Pale eyes. Loud calls. City-smart flocks.

Osprey

Nature's plunge-diving fish hawk

King Quail

Small quail, big color.

Egret

Wetland hunters in white

Eastern Turkey (Wild Turkey)

Big woods. Big gobble.

Jabiru

Big bill. Big bird. Big wetlands.

Bee-Eater

Color in flight, precision in the air

Cedar Waxwing

The berry-loving bird in a velvet mask

Herring Gull

Coastline's clever scavenger

Xeme (Sabine's Gull)

Arctic elegance, ocean wanderer

Xiaosaurus

Small bones, big uncertainty

Xiaotingia

A near-bird from Jurassic Liaoning

Xenotarsosaurus

Patagonia's "strange-ankled" hunter

Meganeura

Carboniferous skies, colossal wings.