Listed by taxonomy[]
Extant species:
Bony fish
- Achilles surgeon fish
- Anchovy
- Anglerfish
- Arapaima
- Arowana
- Azure damselfish
- Bannerfish
- Barracuda
- Bicolor parrotfish
- Black scabbardfish
- Black sea bass
- Blobfish
- Bluestreak wrasse
- California sheephead
- Clam
- Clown triggerfish
- Clownfish
- Coelacanth
- Cowfish
- Emperor angelfish
- Fangtooth
- Five-lined snapper
- Flabby whalefish
- Gar
- Garibaldi
- Giant trevally
- Golden trevally
- Goliath grouper
- Green moray eel
- Hagfish
- Hatchetfish
- Kelpfish
- Lanternfish
- Lionfish
- Mahi-mahi
- Moray eel
- Opah
- Pilot fish
- Powder blue tang
- Reef triggerfish
- Remora
- Roosterfish
- Seahorse
- Striped marlin
- Sunfish
- Threadfin butterflyfish
- Trumpetfish
- Undulated triggerfish
- Unicorn fish
- Viperfish
- Yellow longnose butterflyfish
- Yellow snapper
- Yellow tang
- Yellowtail snapper
Cartilaginous fish
- Basking shark
- Bonnethead shark
- Chimaera
- Cownose ray
- Eagle ray
- Goblin shark
- Great white shark
- Grey reef shark
- Leopard shark
- Manta ray
- Oceanic whitetip shark
- Scalloped hammerhead
- Silky shark
- Thresher shark
- Whale shark
- Zebra shark
Amphibians
- Frog
Reptiles
- Green sea turtle
- Hawksbill sea turtle
- Leatherback sea turtle
- Tortoise
Birds
- Adélie penguin
- Dove
Mammals
- Blue whale
- Common dolphin
- Humpback whale
- Manatee
- Orca
- Polar bear
- Sperm whale
- Vaquita
Mollusks
- Conch
- Cone snail
- Dumbo octopus
- Giant squid
- Humboldt squid
- Nautilus
- Octopus
- Vent mussel
Arthropods
- Lobster, Blue lobster
- Fiddler crab
- Horseshoe crab
Echinoderms
- Crown of thorns starfish
- Cushion starfish
- Sea pig
- Sea urchin
- Starfish
Annelids
- Feather duster worm
- Giant tube worm
- Tomopteris
Cnidarians
- Moon jelly
- Coral
Exctinct species:
Bony fish
- Arandaspis
- Dunkleosteus
- Gyrodus
- Pteraspis
- Tiktaalik
Cartilaginous fish
- Helicoprion
Jawed fish
- Acanthode
Amphibians
- Diplocaulus
Reptiles
- Archelon
- Dakosaurus
- Elasmosaurus
- Geosaurus
- Ichthyosaurus
Mollusks
- Ammonite
Arthropods
- Anomalocaris
- Trilobite
Listed by first appearance[]
Chapter 1
- Bannerfish
- Butterfly
- Crown of thorns starfish
- Cushion starfish
- Goliath grouper
- Starfish
- Sun starfish
- Threadfin butterflyfish
- Yellowtail snapper
- Anchovy
- Black sea bass
- California sheephead
- Crab
- Five-lined snapper
- Garibaldi
- Green moray eel
- Hawksbill sea turtle
- Kelpfish
- Leopard shark
- Lobster
- Sea urchin
- Seahorse
- Trumpetfish
- Yellow tang
- Bluestreak wrasse
- Coral trout
- Great white shark
- Giant trevally
- Manta ray
- Pilot fish
- Rooster fish
- Unicorn fish
- Moon jelly
- Sardine
- Horseshoe crab
- Lanternfish
- Leatherback sea turtle
- Wahoo
Chapter 2
- Bicolor parrotfish
- Blue parrotfish
- Common dolphin
- Golden trevally (juvenile)
- Hatchetfish
- Red snapper
- Anemone
- Azure damselfish
- Blue surgeonfish
- Clam
- Clownfish
- Emperor angelfish
- Feather duster worm
- Green garden eel
- Grey reefshark
- Humphead wrasse
- Lyretail anthias
- Picasso triggerfish
- Powder blue tang
- Pufferfish
- Reef triggerfish
- Ribbon eel
- Splendid garden eel
- Vaquita
- Barracuda
- Green sea turtle
- Mahi-mahi
- Orca
- Sailfish
- Scalloped Hammerhead
- Silky shark
- Yellowtail amberjack
- Undulate triggerfish
- Basking shark
- Dumbo Octopus
- Humpback whale
- Oceanic whitetip shark
- Sea pig
- Striped marlin
- Thresher shark
Chapter 3
- Blue lobster
- Cone snail
- Cownose ray
- Eagle ray
- Golden trevally
- Manatee
- Nautilus
- Octopus
- Sunfish
- Zebra shark
- Lionfish
- Cowfish
- Whale shark
- Achilles surgeon fish
- Bonnethead shark
- Coelacanth
- Remora
Chapter 4
- Blue whale
- Anglerfish
- Blobfish
- Chimaera
- Fangtooth
- Flabby whalefish
- Goblin shark
- Hagfish
- Humboldt squid
- Crab
- Ping pong tree sponge
- Tomopteris
- Viperfish
- Vent mussels
- Black scabbard fish
- Giant squid
- Giant tube worm
- Opah
- Sperm whale
Chapter 5
- Robotic creatures
Chapter 6
- Arandaspis
- Diplocaulus
- Diplomoceras
- Dove
- Plectromoceras
- Starfish
- Trilobite
- Frog
- Acanthode
- Ammonite
- Anomalocaris
- Dolichorhynchops
- Gar
- Helicoprion
- Tiktaalik
- Arapaima
- Archelon
- Arowana
- Dakosaurus
- Dunkleosteus
- Elasmosaur
- Geosaurus
- Gyrodus
- Ichthyosaurus
- Pteraspis
- Tortoise
Chapter 7
- Clown triggerfish
- Great hammerhead
- Adélie penguin
- Narwhal
- Polar bear
