The content originally appeared on: CNN (CNN) - London's famous river is more exciting than we thought. Seahorses, eels, seals - and venomous sharks - have all been discovered in the Thames, the results of a 'health check' have shown. A survey by the Zoological Society of London (ZSL) revealed 'positive news' for wildlife, and ecosystem recovery, the society said Wednesday. Spurdogs, like the one in this file photo, have venom-secreting spines on their dorsal fins. Pally/Alamy Stock Photo Back […]
