DiveSight Institute
DiveSight Institute

Sealife

The life you came to see.

A glimpse of the species divers travel the world for — and the record every diver helps build.

A few of the ocean's headliners.

The DiveSight field guide documents 6,010+ marine species. Here’s a curated glimpse — the giants, the weird-and-wonderful macro life, and the everyday color of the reef. Every one is a species divers can log toward their Sealife List.

Iconic Megafauna

Sharks, rays, whales & big pelagics

Whale Shark
Whale Shark
Rhincodon typus
Giant Manta Ray
Giant Manta Ray
Mobula birostris
Reef Manta Ray
Reef Manta Ray
Mobula alfredi
Munk's Devil Ray
Munk's Devil Ray
Mobula munkiana
Spotted Eagle Ray
Spotted Eagle Ray
Aetobatus narinari
Great White Shark
Great White Shark
Carcharodon carcharias
Scalloped Hammerhead
Scalloped Hammerhead
Sphyrna lewini
Great Hammerhead Shark
Great Hammerhead Shark
Sphyrna mokarran
Tiger Shark
Tiger Shark
Galeocerdo cuvier
Oceanic Whitetip Shark
Oceanic Whitetip Shark
Carcharhinus longimanus
Bull Shark
Bull Shark
Carcharhinus leucas
Pelagic Thresher Shark
Pelagic Thresher Shark
Alopias pelagicus
Orca
Orca
Orcinus orca
Sperm Whale
Sperm Whale
Physeter macrocephalus
Humpback Whale
Humpback Whale
Megaptera novaeangliae
Bottlenose Dolphin
Bottlenose Dolphin
Tursiops truncatus
Atlantic Spotted Dolphin
Atlantic Spotted Dolphin
Stenella frontalis
Dugong
Dugong
Dugong dugon
California Sea Lion
California Sea Lion
Zalophus californianus
Green Sea Turtle
Green Sea Turtle
Chelonia mydas
Hawksbill Turtle
Hawksbill Turtle
Eretmochelys imbricata
Leatherback Sea Turtle
Leatherback Sea Turtle
Dermochelys coriacea
Ocean Sunfish
Ocean Sunfish
Mola mola
Indo-Pacific sailfish
Indo-Pacific sailfish
Istiophorus platypterus
Humphead Wrasse
Humphead Wrasse
Cheilinus undulatus
Bumphead Parrotfish
Bumphead Parrotfish
Bolbometopon muricatum
Goliath Grouper
Goliath Grouper
Epinephelus itajara
Smalltooth Sawfish
Smalltooth Sawfish
Pristis pectinata

Coveted Macro Critters

The weird and wonderful small stuff

Mandarinfish
Mandarinfish
Synchiropus splendidus
Peacock Mantis Shrimp
Peacock Mantis Shrimp
Odontodactylus scyllarus
Greater Blue-ringed Octopus
Greater Blue-ringed Octopus
Hapalochlaena lunulata
Violet Blanket Octopus
Violet Blanket Octopus
Tremoctopus violaceus
Mimic Octopus
Mimic Octopus
Thaumoctopus mimicus
Wonderpus Octopus
Wonderpus Octopus
Wunderpus photogenicus
Coconut Octopus
Coconut Octopus
Amphioctopus marginatus
Giant Pacific Octopus
Giant Pacific Octopus
Enteroctopus dofleini
Flamboyant Cuttlefish
Flamboyant Cuttlefish
Ascarosepion pfefferi
Leafy Seadragon
Leafy Seadragon
Phycodurus eques
Weedy Seadragon
Weedy Seadragon
Phyllopteryx taeniolatus
Hairy Frogfish
Hairy Frogfish
Antennarius striatus
Clown Frogfish
Clown Frogfish
Antennarius maculatus
Raggie Scorpionfish
Raggie Scorpionfish
Rhinopias frondosa
Leaf Scorpionfish
Leaf Scorpionfish
Taenianotus triacanthus
Ornate Ghost Pipefish
Ornate Ghost Pipefish
Solenostomus paradoxus
Bargibant's Pygmy Seahorse
Bargibant's Pygmy Seahorse
Hippocampus bargibanti
Denise's pygmy seahorse
Denise's pygmy seahorse
Hippocampus denise
Harlequin Shrimp
Harlequin Shrimp
Hymenocera picta
Bobbit Worm
Bobbit Worm
Eunice aphroditois
Spanish Dancer Nudibranch
Spanish Dancer Nudibranch
Hexabranchus sanguineus
Blue Dragon Nudibranch
Blue Dragon Nudibranch
Glaucus atlanticus
Pikachu Longhorn Dorid
Pikachu Longhorn Dorid
Thecacera pacifica

Reef Life

The everyday color of the reef

Clown Anemonefish
Clown Anemonefish
Amphiprion ocellaris
Queen Angelfish
Queen Angelfish
Holacanthus ciliaris
French Angelfish
French Angelfish
Pomacanthus paru
Longnose Butterflyfish
Longnose Butterflyfish
Forcipiger longirostris
Burgess' Butterflyfish
Burgess' Butterflyfish
Chaetodon burgessi
Banggai Cardinalfish
Banggai Cardinalfish
Pterapogon kauderni
Giant Moray Eel
Giant Moray Eel
Gymnothorax javanicus
Giant Trevally
Giant Trevally
Caranx ignobilis
Great Barracuda
Great Barracuda
Sphyraena barracuda
Scrawled Cowfish
Scrawled Cowfish
Acanthostracion quadricornis
Filament Devilfish
Filament Devilfish
Inimicus filamentosus
Blue-Striped Snapper
Blue-Striped Snapper
Lutjanus notatus
Image credits (63)
  • Whale Shark — Abe Khao Lak · CC BY-SA 4.0
  • Giant Manta Ray — Steve Laycock (Stevelaycock21) · CC BY-SA 4.0
  • Reef Manta Ray — Shiyam ElkCloner · CC BY-SA 3.0
  • Munk's Devil Ray — Nick Bonzey from Corvallis, OR · CC BY-SA 2.0
  • Spotted Eagle Ray — Wikimedia Commons · Public domain
  • Great White Shark — Bernard DUPONT · CC BY-SA 2.0
  • Scalloped Hammerhead — NOAA Photo Library · CC BY 2.0
  • Great Hammerhead Shark — Albert kok · CC BY-SA 4.0
  • Tiger Shark — Albert kok · CC BY-SA 3.0
  • Oceanic Whitetip Shark · CC BY-SA 3.0
  • Bull Shark — NOAA Photo Library · CC BY 2.0
  • Pelagic Thresher Shark — Ben Costamagna · CC BY 4.0
  • Orca — Robert Pittman · Public domain
  • Sperm Whale — Gabriel Barathieu · CC BY-SA 2.0
  • Humpback Whale — patrickkavanagh · CC BY 2.0
  • Bottlenose Dolphin — Gregory "Slobirdr" Smith · CC BY-SA 2.0
  • Atlantic Spotted Dolphin — NOAA Southeast Fisheries Science Center · Public domain
  • Dugong — Gejuni · CC BY-SA 3.0
  • California Sea Lion — greyloch · CC BY-SA 2.0
  • Green Sea Turtle — Arthur T. LaBar · CC BY 2.0
  • Hawksbill Turtle — State Library of Queensland · No known copyright restrictions
  • Leatherback Sea Turtle — Claudia Lombard, U.S. Fish and Wildlife Service · Public domain
  • Ocean Sunfish — U.S. National Oceanic and Atmospheric Administration · Public domain
  • Indo-Pacific sailfish — harrier · CC BY 4.0
  • Humphead Wrasse — Julien Bidet for MDC Seamarc · CC BY-SA 4.0
  • Bumphead Parrotfish — NOAA Photo Library · CC BY 2.0
  • Goliath Grouper — LASZLO ILYES · CC BY 2.0
  • Smalltooth Sawfish — Wikipedia · CC BY-SA
  • Mandarinfish — antsz1 · CC BY 2.0
  • Peacock Mantis Shrimp — prilfish · CC BY 2.0
  • Greater Blue-ringed Octopus — Wikipedia · CC BY-SA
  • Violet Blanket Octopus — DiveSight · All rights reserved
  • Mimic Octopus — Carlos Fernandez-Cid, carloscies · CC BY 2.0
  • Wonderpus Octopus — prilfish · CC BY 2.0
  • Coconut Octopus — Rickard Zerpe · CC BY 2.0
  • Giant Pacific Octopus — NOAA/R. N. Lea [1] · Public domain
  • Flamboyant Cuttlefish — Rickard Zerpe · CC BY-SA 2.0
  • Leafy Seadragon — James Rosindell · CC BY-SA 4.0
  • Weedy Seadragon — Tim Sheerman-Chase · CC BY 2.0
  • Hairy Frogfish — Etienne Gosse · CC BY 2.0
  • Clown Frogfish — Carlos Fernandez-Cid, carloscies · CC BY 2.0
  • Raggie Scorpionfish — Christian Gloor · CC BY 2.0
  • Leaf Scorpionfish — Carlos Fernandez-Cid, carloscies · CC BY 2.0
  • Ornate Ghost Pipefish — John Stevenson · CC BY 2.0
  • Bargibant's Pygmy Seahorse — prilfish · CC BY 2.0
  • Denise's pygmy seahorse — prilfish · CC BY 2.0
  • Harlequin Shrimp — Etienne Gosse · CC BY 2.0
  • Bobbit Worm — Kris-Mikael Krister · CC BY 2.0
  • Spanish Dancer Nudibranch — Rickard Zerpe · CC BY 2.0
  • Blue Dragon Nudibranch — Sylke Rohrlach · CC BY-SA 2.0
  • Pikachu Longhorn Dorid — yao chiu · CC BY 2.0
  • Clown Anemonefish — Donald Davesne · CC BY 4.0
  • Queen Angelfish — LASZLO ILYES · CC BY 2.0
  • French Angelfish — LASZLO ILYES · CC BY 2.0
  • Longnose Butterflyfish — The original uploader was Aquaimages at English Wikipedia. · CC BY-SA
  • Burgess' Butterflyfish — Wikipedia · CC BY-SA
  • Banggai Cardinalfish — Wikipedia · CC BY-SA
  • Giant Moray Eel — Neil Strickland · CC0 1.0
  • Giant Trevally — Papahānaumokuākea Marine National Monument · Public Domain
  • Great Barracuda — Wikimedia Commons · Public domain
  • Scrawled Cowfish — Wikipedia · CC BY-SA
  • Filament Devilfish — Kai Squires · CC BY 4.0
  • Blue-Striped Snapper — Wikipedia · CC BY-SA

What divers are spotting right now.

Live, research-grade observations from iNaturalist, geo-scoped to iconic dive regions — or to wherever you are. It's exactly the kind of contribution DiveSight helps divers make: streamlined, rigorous, and fed straight into the programs that use it.

Recently observed near Raja Ampat, Indonesia

Recent research-grade observations via iNaturalist, licensed by their observers. DiveSight Institute displays them with thanks — we’re here to feed these platforms, not replace them.

Join the effort

Your next dive can be data for the ocean.

Log what you see and help build a living record of ocean life that informs real conservation — one dive at a time.