Dangers:
- Predators: Some preadators to the sea otter are sharks, killer whales, eagles, and bears.
- Human causes: Oil spills are a big danger to otters. The oil coats the fur, which causes the animal to become very cold and not be able to live. Another danger caused by humans are fishing nets. The otters can get caught in the nets and drown.
- Disease: Heart disease is a major harm to sea otters. It is the cause of 13% of sea otter deaths.