PCB pollution threatens to wipe out killer whales

More than 40 years after the first initiatives were taken to ban the use of PCBs, the chemical pollutants remain a deadly threat to animals at the top of the food chain. A new study shows that the current concentrations of PCBs can lead to the disappearance of half of the world’s populations of killer whales from the most heavily contaminated areas within a period of just 30-50 years.

Shark Mystery: Where Have South Africa’s Great Whites Gone?

The world’s most famous sharks are the great whites off Cape Town, featured in the popular “Air Jaws” series. But now these sharks have mostly gone missing, and some experts blame a fishery for depleting the smaller sharks that the great whites feed on.

Sea turns red with blood after whale hunt in Faroe Islands

Denmark is involved in a shameful practice. While it may seem incredible, even today a whale slaughtering custom continues, in the Faroe Islands. The sea is stained in red from the slaughtering of hundreds of the famous and intelligent Calderon dolphins, which are a type of Pilot whales. An intelligent dolphin that is placid and approaches humans out of friendliness.