Swimming

Nudibranch

Nature's neon, toxin-borrowing sea slugs

Boxfish

Built like a box, swims like a drone

Wels Catfish

The whiskered giant of Eurasian rivers

Freshwater Jellyfish

A jellyfish... in your pond.

Danio

Small fish, big science, bold schools

Crucian Carp

The ethanol-brewing survivor carp

Trout

Cold water, spotted power: trout kin.

Parrotfish

Beaks that build beaches

Keta Salmon

Calico traveler of the North Pacific

Insect

Six legs, endless strategies.

Freshwater Eel

Born at sea, raised in rivers, return to spawn

Grouper Fish

Big mouth. Bold strike. Reef ruler.

Common European Adder

Zigzag guardian of the heath

Lawnmower Blenny

The reef's tiny rock-hopping grazer

Moon Jellyfish

Four horseshoes under a living moon

Jonah Crab

Big claws, Gulf of Maine flavor.

Grass Carp

The underwater lawnmower-handle with care

Escolar

Deep-sea predator with a notorious bite

Lizardfish

Hidden on the bottom, built to strike

Nilgai

Blue bull of India's scrublands

Polecat

Small predator, big attitude

Red-Eyed Tree Frog

Red eyes, rainforest nights

Macaque

Smart, social, seriously adaptable

Eurasian Wolf

Wild Europe's original pack hunter