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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.

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Whales in the News

Dolphins and Whales News -- ScienceDaily

Acoustic buoy now detecting rare and endangered whales in New York Bight - An acoustic buoy making its first near real-time detections of two rare great whale species in the New York Bight, including the highly endangered North Atlantic right whale.
Narwhal echolocation beams may be the most directional of any species - Analysis of some of the first recordings of wintering narwhals showed that they may have the most directional sonar of any species. Understanding how these whales use sound could help predict impacts of Arctic change, say researchers.
Whale song 'GPS system': Previously unknown component of whale songs discovered - Researchers have known for decades that whales create elaborate songs, sometimes projecting their calls for miles underwater. A new study, however, has revealed a previously unknown element of whale songs that could aid this mode of communication, and may play a pivotal role in locating other whales in open ocean.