How do Eurasian Otters defend themselves from environmental dangers, or animals that have otter as prey?- Lewis

Question: How do Eurasian Otters defend themselves from environmental dangers, or animals that have otter as prey? - Lewis
- Keywords:
  animal,
  danger,
  defend,
  environment,
  eurasian otter,
  prey
Asked by anon-160167 to Eurasian Otter on 29 Nov 2017.
- Eurasian Otter answered on 29 Nov 2017:
  
  In the UK, otters have no natural enimies except humans. Although sometimes our young could be attacked by other animals such as for example foxes.
  We probably have no good way to protect ourselves from environmental threats such as chemicals. That’s why we were struggling so much when there was DDT and PCB in the environment. Thankfully, waters are clear now, due to environmeal laws and regulations.

Question: How do Eurasian Otters defend themselves from environmental dangers, or animals that have otter as prey? - Lewis