Probe launched as hundreds of dead fish found in London canal
Dead sea lions with gunshot wounds wash up on US coast
Lost narwhal 1,000km from home adopted by family of beluga whales
Toxic algae devastating Florida coastline kills thousands of fish
Hundreds of fish die from heatwave in London's rivers
'Starfish armageddon' as Storm Emma wreaks havoc for marine life
'Sea pickles' washing ashore on Pacific coast baffle scientists
Giant squid swims to surface at harbour in Japan
John West under fire as Greenpeace says it broke sustainability pledge
Pictured: Six-metre tiger shark that 'swallowed a hammerhead whole'
