large marine mammals are regularly found in the River Thames

Ten years of open sightings demonstrate that extensive marine warm blooded animals are frequently found in the River Thames. The Zoological Society of London (ZSL) has gotten records of 2,732 creatures over that period.  Seals were the most well-known creature seen, with numerous spotted around London's Canary Wharf, presumably in light of the fact that numerous individuals spot them from its high rises.  Furthermore, the general population reported 444 porpoises and dolphins on the stream, and 49 whales.  Joanna Barker, ZSL's European protection ventures supervisor, said: "Numerous individuals investigating the Thames see a dim, filthy environment. 

Be that as it may, really, underneath the waves, it is loaded with 

life. We have a gigantic scope of fish and spineless creatures, furthermore best predators. Only 50 years prior, the Thames was so contaminated it was announced "organically terminated", excessively messy for anything, making it impossible to get by there.Yet, general society sightings affirm that the stream is springing back to life. Furthermore, numerous creatures are wandering further into the English capital's conduit.  Seals were seen as far upstream as Teddington and Hampton Court Palace, in south west London. 

Furthermore, dolphins and porpoises were spotted at Teddington Lock, with extensive cases spotted near Kew Gardens and Deptford.A whale even went to focal London in 2006, however the jug nose did not survive. Other, healthier whales have been seen around Gravesend in Kent.  "The certainty we get such a large number of sightings in focal London proposes the fish stocks are moving into backing these marine predators," said Miss Barker.In addition to the public's reports, the team at ZSL has also been conducting detailed seal surveys along the greater Thames Estuary.

For the last three years, they have used planes and boats to count the number of seals along the river.

The scientists estimate there are about 670 harbour seals along the estuary. The number of grey seals is not known, however they appear to be doing well in this stretch of river. "We do think this area is really important," said Miss Barker. "It's quite sheltered compared with the North Sea, and there is a whole different range of environments and habitats for the marine mammals to use. "So we think that London and the Thames Estuary is an important environment for these species.

"And we are keen to get more sightings year on year, and to build up a better picture of the places that marine mammals are using."