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Whales

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Whales

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.
whales
When chemicals pollute the oceans, the food of whales also gets polluted. Female whales then pass these pollutants directly on to their young through their milk, which can result in death or disability. These pollutants also cause the lowering of the whale's resistance to disease. This means they are more likely to die from diseases.

Commercial as well as scientific whaling by countries as Japan and others remains a huge threat to the survival of certain whale species.

More about:

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Whales in the News

Dolphins and Whales News -- ScienceDaily

North Atlantic right whales decline confirmed: 458 remaining - Marine biologists have developed a new model to improve estimates of abundance and population trends of endangered North Atlantic right whales, which have declined in numbers and productivity in recent years. Between 1990 and 2010 abundance increased to 482 animals, but since 2010 the numbers have declined to 458 in 2015, with 14 known deaths this year.
Paleontologist aids in new discovery 33 years after finding fossil - The fossilized plesiosaur Sankar Chatterjee found in 1984 is giving scientists a new understanding of convergent evolution between reptiles and mammals.
Tracking down the whale-shark highway - Researchers recently discovered that whale sharks in the Eastern Tropical Pacific follow fronts -- the dynamic boundaries between warm and cold ocean waters.