The tree octopus is real. The site is not.
The evolution of an octopus species which exploits trees has long been predicted. Dougal Dickson included “squibbons” in The Future Is Wild. It seems he erred only in saying that such a species was billions of years in the future rather than a mere score.
The following are all documented, non-controversial facts-
Many species of octopus can survive for long periods out of water. Their primary problem is drying out.
Many species are highly inteligent. There is a noted case of an octopus opening the lid of its tank, climbing out, opening another tank, eating the fish, then climbing back into its own tank and closing the lid. There is an octopus in a Japanese aquarium who learned how to open jars. He is now routinely given jars of fish so that crowds can observe.
Those tentacles are strong. They can easily hold the octopus’ weight.
Some species of octopus are extremely compressible. They can pass through small holes, and get into small cracks. The only limit is their beak.
Octopi are VERY shy. Octopi must be very carefully introduced to a new tank. Otherwise, they will hide somewhere and starve to death. If they have no place to hide, they die from stress.
Finally, many species are able to change color just like the squids in the articles linked above.
The following are controversial
The findings of numerous octopus beaks, octopus droppings, and other evidence in the forests of the Pacific Northwest. Skeptics say that either these were planted by pranksters, or are merely evidence of birds taking a catch inland before eating.
Eye witness sightings of tree octopi. (Even though I believe the species does exist, I don’t hold these sightings as credible either)
There are some photographs of tree octopi. Skeptics say that the ones clearly showing an octopus are faked, and claim that photos of camouflaged octopi show blurs, leaves etc.
Rather than face scorn and ridicule for stating their belief in the Tree Octopus, many people post exaggerated joke sites like the ones you’ve seen. I find it disgusting. I said I believed in giant squid. It took years, but we have plenty of proof they exist. The Goblin Shark was just a legend once. We have specimens now.
I believe that the Tree Octopus exists. I know science will prove me right.