A common Mediterranean octopus folds itself beneath a rocky ceiling.

An ornate wrasse brings tropical color to subtropical Madeira.

Madeiran rock suits the mottled camouflage of a scorpionfish perfectly.

A French Queen Angelfish hovers over a red sponge.

A sea turtle glides over the submerged breakwater with a colorful wrasse in tow.

Orange teal is back.

This little ambush predator sways like a dead leaf until an unsuspecting meal drifts close.

A tiny reef crustacean lives in this Padang Bai sponge- two species almost as old as all complex life.

Graduation.

Anemones can display vivid greens, purples, reds, and blues because their tissues contain fluorescent proteins that absorb sunlight and re-emit it as glowing color.

Cuttlefish can raise and flatten tiny skin structures called papillae, allowing them to copy the texture of rocks, coral, or sand almost instantly

Cleaner shrimp will sometimes crawl directly into a moray eel’s mouth to eat parasites while the eel patiently holds still.

Bubble coral inflates its soft, balloon-like tentacles during the day to absorb light, then shrinks them at night when it switches to feeding.

Lemon damsel, blue-green chromis and branching Acropora—three bright signs that Pemuteran’s coral gardens are thriving with life.

This Tulamben anemone provides food, shelter, and one exceptionally suspicious concierge.

Anemones can build on many materials, even wrecks.

Mount Agung is sacred; the dwelling place of the gods and the spiritual axis connecting heaven and earth.

After rain, Amed’s dry hills glow green in the shadow of volcanic Mount Agung.

Clownfish can live with their parents for their entire lives, sometimes more than 20 years, without ever leaving home.

Manned by a Moorish Idol.

An extensive coral garden has revitalized this bay.

Trumpetfish are stealth experts. They can change color to match their surroundings and blend in perfectly. 

Sponges like this one belong to one of the oldest animal lineages on Earth, dating back over 600 million years. Before dinosaurs, before trees, before most animals even existed.

Spot the resident shrimp.

Big smile.

The limestone cliffs of Curaçao were formed from ancient coral reefs that grew underwater millions of years ago and were later lifted above sea level.

The region is tectonically active, adding to its dramatic landscape.

Just need to make it blue.

The Gobi Desert’s high altitude makes night time temperatures frigid year round.

Lacking any bones, this octopus can easily hide in tight spaces.

Vivid coloration gives this Aegean fish a tropical veneer.

Extremely intelligent cephalopods, Cuttlefish can change their color, texture, and even patterns instantly to blend into their surroundings or communicate with others.

Unlike most sharks, reef sharks can rest on the ocean floor, relying on subtle gill movements to keep breathing.

Scorpionfish use their natural camouflage to disappear into the reef, making them nearly impossible to spot.

Starfish are evolutionarily closer to humans than to insects.

These Domino Damselfish are commonly mistaken for juvenile Clownfish, crowding around their home anemone.

This cuttlefish blends perfectly with the sand, smoothing its texture as necessary.

Menjangan Island is famous for its dramatic underwater cliffs, where sheer drop-offs covered in coral plunge deep into the blue, attracting reef sharks, turtles, and massive schools of fish.

The sunken statues in Pemuteran are modern installations that use a gentle Biorock electric current to help coral grow faster and rebuild the reef.

Clownfish, like the famous Nemo, form lifelong bonds with their anemone homes, relying on a mucus coating to stay safe from the stinging tentacles under the sea.

This green sea turtle lounges under a coral overhang, a common sight in Bali’s waters, where strong currents bring a buffet of seagrass and jellyfish.

This moray lurks in its reef hideout at Padang Bai, a coastal village where strong currents bring in a rich mix of marine life.

The black-and-white feathery organisms on the soft coral are crinoids, ancient marine animals related to sea stars that use their feathery arms to filter plankton from the water.

A mature and juvenile clownfish nestle in their H. magnifica anemone.

Native to Southeast Asia, these intelligent and social primates live in large troops and are often seen climbing trees or foraging on the forest floor.

Where the reef meets relaxation.

Congregating under sea rod coral, these distinctive fish are known for their large schools.

Green sea turtles shift from eating worms and crustaceans as juveniles to a fully plant-based diet as adults.

This stag coral has survived September’s high temperatures. Coral bleaching can persist for months.

Iguanas can subtly change their coloration at will. Key point: at will.