Riverine

Tree Viper (Bamboo Viper)

Hook-tailed hunters of African forests

Pit Viper

Heat-sensing hunters with hidden fangs

Viper

Hinged fangs, hidden hunters

Spiny bush viper

Spines in the leaves, fangs in reserve

Saw-scaled Viper

Small snake. Big sizzle. Serious venom.

Io Moth

Big eyes. Bigger bluff.

Gulper Catfish 

Frogmouth: the ambush gulper

Armored Catfish

Armored grazers of the Americas

Saddleback Caterpillar

Look, don't touch the saddle.

Goby Fish

Tiny fish, big partnerships.

Pea Puffer

Small puffer, big attitude.

Beluga Sturgeon

Ancient giant, modern warning

Vampire Crab

Small crab, big attitude.

Asian Carp

Plankton powerhouses, river spawners

Yellow Perch

Schooling gold for hook and pan

Freshwater Sunfish

Spiny fins, sunny colors, fierce parents

Cory Catfish

Armored, whiskered, and social

Arctic Char

Built for ice-cold waters

Grass Spider

Dew-lit sheets, lightning-fast hunts.

Robber Flies

Hawks of the insect world

Jewel Beetle

Nature's living metalwork

Sheepshead Fish

Built to bite shells off the dock

Neon Tetra

Half-red stripe, full neon glow

American Paddlefish

Paddle-snouted plankton hunter