Articles about 'Isobel Ollard'

How fresh-water mussels and a stretch of the River Thames connected two postgraduate scientists separated by over half a century.

Scientists replicated a 1964 River Thames survey and found that mussel numbers have declined by almost 95%, with one species – the depressed river mussel – completely gone.

Moving endangered species to new locations is often used as part of species conservation strategies, and can help to restore degraded ecosystems. But scientists say there is a high risk that these relocations are accidentally spreading diseases and parasites.