Spawning Seas Forever

To the delight of the divers staying at Tawali Resort on the shores of Milne Bay in Papua New Guinea, Anna’s hunch turns out to be right on track.

Staghorn coral nurseries create fish habitats even as suspended branches

It Takes Only One Good Fish

OUR RECENT UNDERWATER ADVENTURE began with a fanciful quest to track down an inconspicuous little fish no larger than a nickel … the seldom-seen dwarf seahorse (Hippocampus zosterae).

The Hamlet Dilemma

SINCE THE LATE 1800S, debate among marine taxonomists has swirled around the species status of the stately little Caribbean sea basses in genus Hypoplectrus, commonly known as hamlets. At the […]

Leaping for Love

Blennies have interesting mating rituals — males often change colors to attract a mate.

A male red-streaked blenny displays its normal color pattern.

Japan’s Little Fish with a Big Heart

MANY JAPANESE DIVERS LOVE UNDERSEA CREATURES, particularly the home-grown varieties living in abundance along the country’s craggy volcanic coastlines and offshore islands. They also have an infatuation for the eccentric […]

JAPANESE DIVERS LOVE pufferfish nests, crop-circle-like sand structure pufferfish love nests, Torquigener albomaculosus, 6-foot egg nest, Amami Ōshima, UNESCO’s World Heritage List Alert Diver magazine Q4 2023

Mouths Full of Eggs

Eggs are a dinnertime delicacy in reefs around the world, which means protecting nests is hard work. Ironically, the safest place to hide eggs may be in the mouth.

A cardinalfish has its mouth full of orange eggs

Dragon Road, Part 1

Any animal that looks as unconventional as a seadragon must also have an unconventional sex life. Unlike most marine fishes, which reproduce by spontaneously releasing and leaving behind thousands of tiny eggs in the open ocean, seadragons brood their large eggs attached to the tails of males for a month.

A yellow seadragon is floating through kelp

Dragon Road, Part 2

The handfish is a kind of evolutionary oddity that prefers to walk on its fins than swim. However, like so many other marine species, their species are in decline and their habitat is being stripped away.

An angry spotted handfish tropes through the sandy bottom

Undercover Crabs

Most decorator crabs belong to one of eight families in the superfamily Majoidea, commonly referred to as spider crabs. About 75 percent of the group’s more than 1,100 global species mask their presence by wearing disguises made from living organisms scissored from the landscape. They commonly hijack seaweeds, sponges, tunicates, bryozoans and hydroids. The crabs manipulate the purloined pieces of attire with their mouths before attaching them to one of the many fishhook-shaped bristles arranged in rows on the carapace, rostrum, walking legs and claw arms, depending on the species.

A decorator crab is perched among red hydroids.

On Another Planet — Japan: Part 1

Diving in Japan exposes divers to colorful sea life and unique experiences. Learn more about diving in Japan.

Striped boarfish hanging out beneath a ledge. The fish looks like it has a beard on its lower lipl