Explain how an oil spill devastates marine life when animals get covered by the toxic sludge

Marine life such as fish, birds, whales, dolphins and seals are affected by oil spills. Oil sticks to birds preventing them from flying. Whales and dolphins and other creatures that use blow holes can get oil into their respiratory system, making it difficult to breathe. Animals can also ingest the oil. This can become fatal in the short or long term.