Dolphins may be a familiar sight in the north-east but that doesn’t take away from these astonishing images captured off the Welsh coast.
The baby bottlenoses were spotted by researchers at the Seawatch Foundation, who are studying the largest dolphin population in the British Isles in Cardigan Bay.
The four newborn calves were photographed by Katrin Lohrengel, Seawatch monitoring officer for the area, and a local dolphin tour boat operator, Jonathan Evans.
Ms Lohrengel said: “We use a technique named photo ID to identify individual dolphins. It involves photographing the nicks and notches on their dorsal fins and comparing them to others in a large catalogue.
“Once we can positively identify the mother, we can be sure that the calf by her side belongs to her.
“We have seen four distinctly different mothers with new-born young recently so it feels like a real baby boom.”