Both dolphins and beluga whales have been infected with related coronaviruses in the past.

Researchers broke down the effects of the COVID-19 pandemic into three categories: marine vessel traffic, plastic pollution and changes in the way data is collected.

Video footage shows the dolphin appearing to respond to the dogs' barks.

The dolphin pod is used to being visited by humans every day in Australia's Tin Can Bay.

A red tide by day is generating some spectacular waves at night, as plankton light up the water off California and Mexico.

The Venice Canal waters are also running clearer as COVID-19 keeps tourists and cruise ships away.

Common bottlenose dolphins have an even higher right-side bias than humans at more than 99 per cent. 

The dolphins were found washed up with their fins cut off.

The Whale Sanctuary Project says it is holding public information meetings in Dartmouth, Liverpool, Port Hawkesbury, Sherbrooke and Sheet Harbour to identify a possible seaside sanctuary for beluga whales freed from entertainment parks.

John Holer, the founder of the Marineland theme park in Niagara Falls, Ont., has died at the age of 83.