Europe’s smallest whale the harbour porpoise is THRIVING in the Thames Estuary Posted on August 17, 2022 By Charlielikes Acoustic and visual surveys by by Zoological Society London have revealed that ‘significant numbers’ have been living in the outer Thames, where the river meets the sea, for several years. news Tags:'is, estuary, europe’s, harbour, in, news, porpoise, smallest, thames, the, thriving, topnews, trending, whale