Explore Every
Marine Species
on Earth
The world's most comprehensive marine encyclopedia — from sunlit coral reefs to the crushing depths of the Mariana Trench.
The Scale of Ocean Life
Our continuously updated database reflects the latest marine science research and IUCN assessments.
Remarkable Marine Life
From the ocean's surface to the abyss — meet the species that define our blue planet.
Great White Shark
Carcharodon carcharias
The great white shark is the world's largest known predatory fish, renowned for its size, power, and intelligence. An apex predator of the open ocean.
Blue Whale
Balaenoptera musculus
The blue whale is the largest animal known to have ever existed on Earth. Their calls can travel thousands of miles across ocean basins.
Leafy Sea Dragon
Phycodurus eques
The leafy sea dragon is among the most spectacular and unusual marine animals. Its elaborate leaf-like appendages serve as camouflage rather than propulsion.
Giant Pacific Octopus
Enteroctopus dofleini
The largest octopus species on Earth, known for extraordinary intelligence, problem-solving ability, and complex behavior. Each individual has a unique personality.
Hammerhead Shark
Sphyrna mokarran
The great hammerhead shark is the largest of the hammerhead species. Its distinctive cephalofoil (hammer-shaped head) provides enhanced sensory capabilities.
Manta Ray
Mobula birostris
The oceanic manta ray is the world's largest ray, with a wingspan reaching over 9 meters. Highly intelligent with the largest brain-to-body ratio of any fish.
From Surface to Abyss
Explore the five major depth zones of the ocean — each a distinct world with unique life forms and extreme conditions.
Sunlight Zone
Epipelagic
The sunlit upper ocean where photosynthesis occurs. Home to the greatest diversity of marine life and nearly all coral reef ecosystems.
Recent Discoveries
New findings and updated research from marine biologists around the world.
Among the deepest-dwelling octopus species, the dumbo octopus uses ear-like fins to hover and maneuver in the pitch-black abyssal zone.
Source of the Nobel Prize-winning discovery of green fluorescent protein (GFP), which revolutionized molecular biology and cell imaging worldwide.
The mantis shrimp possesses 16 types of color photoreceptors — compared to 3 in humans — and strikes with the force of a bullet, accelerating at 10,000g.
The leafy sea dragon is among the most spectacular and unusual marine animals. Its elaborate leaf-like appendages serve as camouflage rather than propulsion.
The narwhal's spiral tusk is an elongated upper left canine tooth that can reach 3 meters. It contains millions of nerve endings used as a sensory organ.