The primary impact of plastic debris on marine animals is entanglement and ingestion, leading to injury, illness, or death. Marine species, such as dolphins, sea turtles, and seabirds, often mistake plastic for food, resulting in digestive blockages, malnutrition, and toxic exposure. Entanglement can impair mobility and lead to drowning. Additionally, plastic pollution disrupts marine ecosystems by altering habitats and affecting food chains. Understanding these impacts emphasizes the urgent need for policies and practices that reduce plastic usage and promote responsible waste management to protect marine life and ecosystems.