Knifefish
Life in South America, powered by volts
Conservation Threats
Infrastructure
Roads, dams, power lines, and buildings causing mortality or habitat fragmentation
1,658
Animals
62/70
Page
Infrastructure Animals
Kaluga Sturgeon
Giant hunter of the Amur
Dimetrodon
Permian sailback-before dinosaurs
Deinocheirus
The terrible-handed wetland omnivore
Haikouichthys
A tiny fossil at vertebrates' dawn
Hatzegopteryx
Hateg's giant sky-stalker
Crayfish
Claws that shape freshwater worlds
Giant Siphonophore
Many bodies, one predator.
Sequined Spider
Nature's tiny living disco ball
Feather Star
Feathery arms, drifting meals
Opaleye (Rudderfish)
The kelp-forest fish with an opal eye
Yellow Crazy Ant
Small ant, supercolony impact
Nutria
Orange teeth, big impact on wetlands
Orinoco Crocodile
Orinoco's long-snouted river giant
Onager
Iran's lightning-footed onager
Kissing Bugs
Night feeder, public-health sentinel
Olingo
Neotropical night-fruit acrobats
Nabarlek
Small wallaby, big cliff skills.
Barreleye Fish (Barrel Eye)
A clear head with eyes that swivel
Ember Tetra
A living ember for nano tanks
Oregon Spotted Frog
Warm-shallow wetland specialist of the PNW
Owl Butterfly
Big wings. Bold eyes. Dusk flyers.
Elephant Fish
Probe the seafloor, chimaera-style
Killifish
Small fish, big survival strategies