What do Australian sea lions look like?
Like a walrus or any other sea lion.
See the related link for a picture of an Australian sea lion.
The reason why sea lions are endangered is because they are being hunted for their coat. They are also endangered because they are either getting killed or hurt from fishing equipment. Also humans are trying to fish them out by using squid, fish and other animals. Even though the Australian sea lions are protected they are still endangered and are soon becoming extinct.