We asked our readers to send in their best pictures on the theme of "ripples". Here is a selection of the photographs we received from around the world.
Jiri Dvorak photographed ducks in London. [Jiri Dvorak]
Łukasz Wojtylak: “Flowers by the city pond in Niepołomice, Poland. In the background, fish are catching insects in the sunlight.” [Łukasz Wojtylak]
Erin Stenzel: “A Red-Striped Ribbon snake cooling off and making some waves at Ladybird Johnson Wildflower Center in Austin, Texas.” [Erin Stenzel]
Andrew Martin: “Ripples in the sand under Weston-super-Mare pier, giving something of a solar flare vibe.” [Andrew Martin]
Kathlene Persoff: “Strong Atlantic winds at Palmetto Dunes Beach on Hilton Head Island, South Carolina, created graceful ripples in the sands.” [Kathlene Persoff]
Chris Tudor: “Rhythmic patterns on the trunk of a mature palm tree in Puerto del Carmen, Lanzarote.” [Chris Tudor]
David Robinson: “On a bustling shopping street in central London a reflection of pedestrians creates the impression of urban ripples.” [David Robinson]
Matthew Logan: “The ripples formed from the water dripping off the paddle of the canoeist makes a perfect arc.” [Matthew Logan]
Quintin Quinn photographed ripples in the sand. [Quintin Quinn ]
Shauna Dalziel: “The sky, the sea, the sand all rippled at the Newton Shore, Ayr. We stood and bathed in the glorious sunset.” [Shauna Dalziel]
John Dawson: “I took a train to Dunbar from Edinburgh, as I had heard there was a lot to see around the harbour area. What I had heard was correct - spent the whole day there.” [John Dawson]
Iain Shaw: “Clear water ahead. Goslings kicking up a storm.” [Iain Shaw]
Paul Sullivan: “Droplets from a dock line in Pigeon Cove, Rockport, Massachusetts.” [Paul Sullivan]
Lee Slater: “I missed Sarah's impressive dive into Blue Lake, Central Otago, but caught this fine set of ripples instead. This lunar-like landscape used to be one of New Zealand's deepest gold mines.” [Lee Slater]
Fiona MacCallum: “East Quay, Wells -next-the-Sea, north Norfolk. I caught the ripples at dusk as a dinghy went past.” [Fiona MacCallum]
Kevin Privett: “Ripples in the fabric of space-time caught on camera; or is it just crazy mirrors on Southwold pier?” [Kevin Privett]
Jenny Retzler: “Ripples on flooded fields around Coniston Water, Lake District.” [Jenny Retzler]
Jane Luetkens: “Before steering this insect towards a lily pad and safety, I had to admire the ripples it made on the water.” [Jane Luetkens]
Henry Szwinto: “Sunset at Setley Pond, New Forest, Hampshire.” [Henry Szwinto]
Miriam Simmons photographed a swimmer at Walpole Bay in Kent. [Miriam Simmons]
The next theme is "On top of the world" and the deadline for entries is 11 June 2024.
The pictures will be published later that week and you will be able to find them, along with other galleries, on the In Pictures section of the BBC News website.
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