Seahorses thriving in cleaner river Thames, scientists say
The discovery of a colony of short-snouted seahorses (Hippocampus hippocampus) living in the Thames means that the London river is becoming cleaner, conservationists said today. Scientists from the Zoological Society of London (ZSL) have discovered five seahorses during routine conservation surveys in the Thames estuary in the past 18 months, evidence which they say indicates that a breeding population exists.