Sea life

Spotted eagle ray

Aetobatus narinari

A spotted eagle ray with a dark back covered in white spots swimming over a sandy sea floor

Photo: the manta ray had a family · Public domain · via Wikimedia Commons

Where
Reefs, Offshore, Beaches
When
All year
Size
Wingspan commonly 1.5 to 2 metres
Should I worry
Enjoy it
Harmless if left alone. It has a barb at the base of the tail but will simply glide away from you.

It comes out of the blue below you, a wide black diamond spotted with white, moving without apparent effort, and passes with a flick of the wings and a long thin tail trailing metres behind.

Where you’ll see it

Over sand and around the rocky headlands and reefs from Coco to the Catalina Islands. Snorkellers see them off Hermosa and Ocotal and divers see them regularly, sometimes in groups.

What to know

Eagle rays hunt clams and crabs in the sand, using the flat snout to dig, and they are often followed by small fish hoping for scraps. They are strong swimmers and sometimes leap clear of the water. They pose no risk to swimmers, being neither aggressive nor inclined to lie buried in the shallows the way stingrays do.

Questions people ask about this one

Are eagle rays dangerous?

No. They have a venomous barb near the base of the tail like all their relatives, but they do not rest on the sand where people step, and they swim away from anything approaching. Watching one pass is one of the treats of snorkelling here.

Wondering what else is out there?

Ask me on the call. I'll tell you what actually shows up in a Coco garden, what to do about it, and the one guy everyone rings when there's a boa in the roof.

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