Biologist Mike Ross, balanced in a canoe beneath a star-filled sky in central Zambia, slaps the water with a net attached to ...

In a mid-sized lake of Switzerland, a “robust” creature with “slim” bumpy lips swam through the shallow water, or it tried to, at least. But something zapped it and caused it to float to the surface.

An estimated 26 per cent of Africa’s freshwater fish species are threatened (including those assessed as Critically ...