Haikouichthys
A tiny fossil at vertebrates' dawn
Mating Social Behaviors
Aggregation / Group
Animals gather in groups for breeding but without strong pair bonds or social structure
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Animals
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Aggregation / Group Animals
Ornithocheirus
Bird-hand ruler of Cretaceous skies
Lystrosaurus
The beaked survivor of Earth's worst crisis
Scutosaurus
Permian armor, plant-powered
Pachycephalosaurus
Built like a bipedal battering ram
Palaeoloxodon namadicus
The giant straight-tusked titan of Ice-Age India
Xiphactinus
Not a dinosaur-Cretaceous sea predator
Feather Star
Feathery arms, drifting meals
Opaleye (Rudderfish)
The kelp-forest fish with an opal eye
Nutria
Orange teeth, big impact on wetlands
Kissing Bugs
Night feeder, public-health sentinel
Ember Tetra
A living ember for nano tanks
Oregon Spotted Frog
Warm-shallow wetland specialist of the PNW
Elephant Fish
Probe the seafloor, chimaera-style
Eagle Ray
Wings that crack shells
Kudzu Bug
Small bug, big swarms-beware kudzu's hitchhiker.
Treehopper
Helmets on, vibrations on.
Pig-Nosed Turtle
Sea-turtle flippers, river-turtle soul
Pacific Spaghetti Eel
The eel that lives like a worm
Kouprey
Kouprey: the vanishing forest ox
Khapra Beetle
Tiny beetle, massive quarantine threat.
Hartebeest
Built for the long run on the plains
Volcano Snail
Armored snail of the iron vents
Striped Bass
River-born. Ocean-built. Striped bass.