Thailand's pink dolphins are a subspecies of the Indo-Pacific humpback dolphin and are listed as a vulnerable species by the International Union For Conservation of Nature.
There are about 150 of these pink dolphins living around the Gulf of Thailand, according to Kongkiat Kittiwatanawong, the director of the Phuket Marine Biological Center.
"Due to less traffic with the coronavirus lockdown, dolphins now have a more comfortable habitat, and that's why they tend to show up more," Kongkiat told Reuters over the phone.
Tourism in Thailand has plunged more than 76% in March from a year earlier, as the country was hit by the coronavirus outbreak.