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If Humans Die Out, Octopuses Already Have the Chops to Build the Next Civilization, Scientist Claims
(www.popularmechanics.com)
Do we need to die for this to happen? 
Idk. Dolphins do sex for pleasure and find "toys" to masturbate with and Hitchhiker's Guide to the Galaxy said they'd survive getting off the planet before it's destruction. They did try to warn us.
I, uh. Think there's a word for what they do to their "toys", and it isn't masturbation.
I found a YouTube link in your comment. Here are links to the same video on alternative frontends that protect your privacy: