The Fascinating World of Rays

New Caledonia, Coral Sea, South Pacific

Beneath the surface, some of the sea’s most graceful animals move through a hidden world we cannot see...

 

There is something special about rays. I truly love to encounter and observe them. Each meeting feels like a quiet privilege, leaving a distinct, lasting impression. There’s a calm awareness in their movement that’s hard to put into words, but impossible to forget.

 

Rays are closely related to sharks, and like them, they don’t have bony skeletons. Instead, their skeletons are made of cartilage, the same flexible material found in our noses and ears. This small detail makes a big difference. Without heavy bones, rays are lighter and more agile, able to move through water with a kind of effortless control.

 

Most rays live near the ocean floor, and their bodies are perfectly designed for it. Their eyes sit on top of their flattened bodies, keeping watch above, while their mouths are underneath, ready to feed on what lies below. They often eat a mix of benthic crustaceans, molluscs, worms and small fish and squid hidden in the sand.

 

 

Something really fascinating is how they find their food...

Rays can sense electricity.

They sense this through sensory organs called Ampullae of Lorenzini, specialized electroreceptors found in sharks, rays, and a few other fish. Appearing as tiny pores on the head, these jelly-filled canals detect faint electrical, magnetic, and temperature changes, allowing them to navigate and hunt even in complete darkness.

Every living creature produces tiny electrical impulses through muscle and nerve activity, far too subtle for us to notice. Yet for a ray, these currents form a hidden map, revealing even prey buried beneath the sand through faint electrical traces.

It’s a reminder that the ocean is full of information we can’t see, a hidden layer of life constantly unfolding.

Not all rays follow the same path. Manta rays, for example, leave the ocean floor behind and swim in open water. They feed on plankton, filtering tiny organisms as they glide forward with slow, rhythmic movements. It’s a completely different lifestyle, but just as graceful.

 

Rays are not defenseless. Stingrays carry a venomous barb on their tails, which they can use if threatened. Electric rays can generate shocks strong enough to stun predators or prey. These abilities sound dramatic, but rays rarely use them unless necessary.

Still, their calm nature doesn’t protect them from danger.

Many ray species are now under threat due to overfishing, pollution, and habitat destruction. As they grow slowly and have few offspring, their populations don’t bounce back quickly. Once they disappear from an area, recovery takes many years, sometimes even decades. 

 

 

Rays move at their own pace, in a world that often feels like it’s speeding up. They don’t fight the current, they seem to belong to it. Maybe that’s what makes watching them so calming.

They remind us that not everything powerful needs to be fast. Sometimes, strength looks like stillness. Sometimes, it looks like a ray, gliding quietly through the sea, aware of a world we can’t even sense.

 

 

 

From Stripes to Spots: The Zebra Shark

New Caledonia, Coral Sea, South Pacific

When we hear the word shark, we might imagine sharp teeth, speed, and danger. But many sharks does not fit that picture. Among coral reefs and sandy bottoms of the Indo-Pacific lives a creature as gentle as it is surprising, the zebra shark (Stegostoma tigrinum).

 

 

As juveniles, zebra sharks are patterned in bold black-and-white bands, hence the name. Adults, however, lose their stripes. Their bodies turn golden-brown, sprinkled with small dark spots, more like a leopard than a zebra. This shift is so striking that they also are called “leopard shark” even though that name officially belongs to a different species.

 

 

Fully grown, zebra sharks can reach up to 2.5 meters in length, their bodies slender but strong. Their most distinctive feature is their tail, which can stretch to nearly half their total length, a ribbon of muscle that carries them with unhurried grace. 

 

During the day, zebra sharks are often found resting on sandy seafloors, motionless but watchful. Unlike many sharks, they don’t need to constantly swim to breathe, they can pump water across their gills while still. When they do move, it is with an elegance, slowly but with purpose. They are not fierce hunters but patient foragers, using strong jaws to crush mollusks, crustaceans and sea urchins.

 

 

Zebra sharks also hold one of evolution’s quiet marvels. In the absence of males, females have been documented reproducing through parthenogenesis, life continuing without mating, proof that nature is always finding a way. 

And yet, despite surviving millions of years of change, zebra sharks now face threats that may outpace their resilience; overfishing, fin trade and decline of coral reefs. 

They are listed as Endangered, with conservationists racing to protect what remains of their declining populations.

 

 

This is a creature of contrasts; born in stripes, matured in spots; a shark that can lie perfectly still for hours, yet roam the ocean’s reefs as if time itself had paused; a hunter, yet one of the gentlest giants of the sea; an ancient survivor, fragile in the ever-changing age of humanity.

 

 

Each encounter with these beautiful beings leaves me with a quiet awe, the kind of admiration that only comes when you meet a creature on its own terms, in its own world. 

Sometimes we find them resting on the sand, their spotted bodies so beautifully patterned they seem more like a dream than reality.

 

 

When they swim, they move softly, almost sinuously, their long tails sweeping slowly through the water. Sunlight dances in shifting patterns across their skin. In such moments, it feels as if the ocean itself is holding its breath and their calm acceptance of my presence feels like being allowed into a secret.

To drift alongside a zebra shark is to feel both small and connected, reminded that the ocean’s mysteries are not distant, but alive and breathing right before your eyes. They remind us that sharks are not just symbols of fear, but of fragility, beauty, and survival. And for me, every encounter is a gift, a reminder that our role is not to dominate the ocean, but to care for it, so that its living mystique may endure.

 

 

 

 

In the Presence of a Manta

New Caledonia, Coral Sea, South Pacific

Diving beside a manta humbles you gently. Its vast, effortless motion reminds you how small, and how fortunate, you are to be here. 

When it turns, curious and unhurried, the line between observer and observed fades. In its presence, scale shifts: human urgency feels misplaced, surface concerns grow distant.

What remains is movement, breath, and a quiet joy, so deep that it follows you long after the dive.

Watch the mantas glide through the water in the video below, and let yourself be carried by the same quiet presence.