Fascinating facts about dolphins | DW Documentary
Dolphins are among the smartest animals in the ocean, but their importance goes beyond intelligence.
As top predators, they help keep marine ecosystems balanced. Dolphins are also key indicators of ocean and river health. Because they are highly sensitive to environmental changes, declining populations can be an early sign of pollution, overfishing, or habitat loss.
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As top predators, they help keep marine ecosystems balanced. Dolphins are also key indicators of ocean and river health. Because they are highly sensitive to environmental changes, declining populations can be an early sign of pollution, overfishing, or habitat loss.
#documentary #dwdocumentary #dwdocs
______
We kindly ask viewers to read and stick to the DW netiquette policy on our channel: https://p.dw.com/p/MF1G
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