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
Scientists tag humpback whales in southeast Pacific
- Whales from both poles migrate long distances to breed in tropical waters. Researchers tagged 47 humpbacks with satellite transmitters to understand how the humpbacks' Southeastern Pacific population moves within breeding areas.