The finless porpoise is known to also follow seasonal migrations. It is known that populations in the mouth of the Indus River migrate to the sea from April through October to feed on the annual spawning of prawns. In Japan, sightings of small pods of them herding sand lance onto shore are common year-round.
The finless porpoise is known to also follow seasonal migrations It is known that populations in the mouth of the Indus River migrate to the sea from April through October to feed on the annual spawning of prawns In Japan sightings of small pods of them herding sand lance onto shore are common year-round