Pollution can enter bodies of water in many different ways - Through toxic runoff from pesticides and fertilizers , containers of oil and other hazardous materials falling off of ships , or just from debris from humans that has not been picked up . No matter what the form of pollution is , the effects water pollution has on animal life can be drastic . For example , the BP oil spill which occurred in 2010 impacted over 82,000 birds , 6,000 sea turtles , approximately 26,000 marine animals , and hundreds of thousands of fish
BP oil spill
Deepwater Horizon oil spill
Wildlife observation