Marine life comprises diverse organisms living in oceans, seas, and coastal waters, from microscopic plankton to massive whales. This biodiversity plays a crucial role in maintaining the health of marine ecosystems and supporting global ecological balance. Marine organisms contribute to carbon cycling, oxygen production, and the sustenance of coastal communities worldwide. However, marine life faces significant threats due to pollution, habitat destruction, and climate change, which disrupt natural processes and endanger species. Conservation efforts focus on protecting habitats, regulating fishing, and controlling pollutants to ensure that marine biodiversity thrives, benefiting ecosystems and human communities alike.