Crepuscular

Rhino Viper

Horns in the leaf litter.

Urutu Snake

Urutu-cruzeiro: the cross-marked ambusher

Mole Snake

Big bite, no venom-rodent remover

Worm Snake

The earthworm hunter underfoot

Parrot Snake

Green, swift, and sky-high by day

Zebra Snake

Zebra stripes, venomous sights

Snook Fish

Linesiders of the tides

Mojarra

Silver schools, sand-sipping snouts

Surgeonfish

Scalpels on the tail, gardeners of reefs

Bluegill

Small mouth, big attitude-Bluegill

Redtail Catfish

Big head. Red tail. River titan.

Electric Catfish

Africa's freshwater "shock" catfish

Banana Eel

Golden tail, midnight hunter

Chinook Salmon

King of the Pacific salmon runs

Black Rat Snake

Barn-climbing rodent patrol

Flying Snake

Glide the canopy, don't fly it.

Ground Snake

Small snake, big desert hide-and-seek

Stargazer Fish

Eyes up. Mouth up. Strike up.

Conger Eel

Night hunters of the seafloor

Goonch Catfish

Built for rapids, born to ambush

Red-Bellied Black Snake

Black above, red below-keep your distance

Batfish

Walk the bottom, lure the bite.

Green Anaconda

Built for wetlands. Powered by constriction.

Yellow Anaconda

Paraguay-Paraná's stealthy giant