A forest ranger looks at a dead southern right whale lying on the beach near Puerto Madryn, Argentina, October 5, 2022. (Photo: CFP)

In the past few days, at least 13 dead whales appeared on the coast of the Golfo Nuevo and Peninsula Valdez sanctuary, in northern Patagonia. (Photo: CFP)

The cause of death is being investigated, according to the Whale Conservation Institute. (Photo: CFP)

The southern right whale is a baleen whale with two blowholes. The species inhabits the southern and sub-antarctic oceans, and migrates to warmer temperate waters around African, South American and Australian land masses during the winter breeding season. (Photo: CFP)