Crayfish 'trapping' fails to control invasive species

Despite being championed by a host of celebrity chefs, crayfish 'trapping' is not helping to control invasive American signal crayfish, according to new research by UCL and King's College London.

Beloved Colombian hippos pose environmental dilemma

At dusk, the street lights flicker on around a city park, located not far from the Magdalena River in Colombia. An enormous figure emerges from the shadows. It lumbers forward, stopping to graze on the grass. The scene verges ...

page 1 from 5