Endangered Otters

Otters are endangered in many areas. They have been in aquariums that save animals like that because they are the best aquatic water helpers,they clean the water and try's to make peace with the other animals.Sometimes it works sometimes it doesn't.  These otters are very cute and adorable do you wanna see them look sad? I wouldn't! Otters live all across the united states they are very famous animals,scientist care a lot about otters and so do I please save this aquatic animal from being extinct. I will help and i hope you will to.