Dolphins are often accidentally caught in fishing gear, known as bycatch. This is a major threat to dolphins, as they are often unable to escape and drown. Some species of dolphins, such as the vaquita, are particularly at risk of bycatch.
Habitat destruction
The destruction of dolphin habitats, such as coral reefs and mangroves, is also a major threat. These habitats provide dolphins with food, shelter, and breeding grounds. When these habitats are destroyed, dolphins are forced to move to new areas, where they may not be able to find suitable food or shelter.
Pollution
Pollution, such as oil spills and plastic pollution, can also harm dolphins. Dolphins can ingest pollutants through their food or water, and these pollutants can cause a variety of health problems, including cancer, reproductive problems, and immune system disorders.
Hunting
Dolphins are also hunted in some parts of the world for their meat, oil, and skin. This is a major threat to dolphins, as it can lead to population declines.
Climate change
Climate change is also a threat to dolphins, as it is causing changes to their habitats and food supplies. These changes can make it difficult for dolphins to survive, and they may ultimately lead to population declines.