NOVA scienceNOWHow Smart Are Animals? Clip: Season 5 Episode 4 | 52m 59s Dogs, dolphins, parrots and even octopuses (mere mollusks!) may be smarter than you think. Aired: 02/09/11 Rating: NR Closed CaptioningVideo has closed captioning.checkmarkAdd to WatchlistProblems Playing Video?Report a ProblemClosed CaptioningShare:Share this video on FacebookFacebookShare this video on TwitterTwitterShare this video on Google PlusGoogleShare this video via EmailE-mailEmbedEmbed Code for this videoEmbed CodeNOVA scienceNOWHow Smart Are Animals?Season 5 Episode 4Width in pixels px Height in pixels px Copied to your clipboardUnable to copyLabelCopy to ClipboardClick to copy embed code for videoCloseCloseReport a ProblemBefore you submit an error, please consult our Troubleshooting Guide.Type of ErrorVideo doesn't loadVideo loads, but doesn't playVideo jumps back/forwardOnly audio is streamingSponsorship playback errorOtherPlease add more detailsCancelSubmit ReportYour report has been successfully submitted. Thank you for helping us improve PBS Video.CloseCloseClose Learn More Down Your Favorite Smart Animal The Meaning of Dog Barks Tool-Using Animals Bird Brains Episode Links Teachers FeedbackFunding for NOVA is provided by David H. Koch, the Corporation for Public Broadcasting and PBS viewers. Additional funding is provided by George D. Smith.