Seals and sea lions can repeat their last action on command, as long as they are asked to do so within 18 seconds , hinting at a degree of self-awareness
Source:
https://www.newscientist.com/article/2208530-seals-remember-what-they-just-did-but-only-for-about-18-seconds/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home