Whales face many threats to their welfare, health, and their existence. The main cause is commercial hunting and pollution. Chemicals and pesticides can poison their internal systems, while discarded rubbish like nets, plastics or fishing lines can strangle the animals to death. Whales are, just like dolphins, highly acoustic mammals. Noise caused by coastal developments and industrial activities can disrupt whales. Tourism also effects whales. They can feel very harassed, especially when they are breeding and calving.
Commercial as well as scientific whaling by countries as Japan and others remains a huge threat to the survival of certain whale species.
Dolphins and Whales News -- ScienceDaily
Whales in the News
Right whales threatened by planned seismic surveys along Mid- and Southeastern Atlantic seaboard, say scientists
- A series of seismic surveys for oil and gas planned for the mid- and southeastern Atlantic coastal areas of the United States pose a substantial threat to one of the world’s most endangered whale species, according to a group of renowned marine mammal scientists urging a halt to the surveys in a statement released today.