Seals reveal that the River Thames is healthier than people think
Despite the brown color of London's River Thames, marine biologists are happy to report that the river is actually healthier than people think. In the 1950s, researchers had proclaimed the river “biologically dead,” but these days, the stable seal population suggests that the river is Read More...
The River Thames was once declared biologically dead. Now it’s a haven for seals
The River Thames is known for many things, but cleanliness isn’t one of them. The English river has been a highway, a sewer and was declared biologically dead 62 years ago. But things have changed. According to the Zoological Society of London (ZSL), researchers counted 138 baby seals living in Read More...