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How intelligent are living beings?

United States Polar Offline
Polar Bear Enthusiast

For one, I actually prefer life in the Stone Age/Pleistocene.
"If all mankind were to disappear, the world would regenerate back to the rich state of equilibrium that existed ten thousand years ago."

- E.O Wilson

United States chaos Offline
wildlife enthusiast

(08-03-2016, 06:16 PM)Polar Wrote: For one, I actually prefer life in the Stone Age/Pleistocene.

In that scenario, only the strong survive.
1 user Likes chaos's post

United States Polar Offline
Polar Bear Enthusiast

More evidence of octopus intelligence? Reminds me of grizzly moms who, in Scandinavia, chose to live closer to human habitats in order to avoid cannibalistic male grizzlies during the fall months.

Deepest Octopus Nursery Discovered, Holds Dark Secret

"April 20, 2018 - Reviewing underwater footage from the waters off Costa Rica, marine biologists discovered something unusual—hundreds of octopus moms, incubating their eggs. The location, 1.2 miles below the surface, is much deeper than expected to find an octopus nursery. They normally seek out cooler waters to sit with their eggs, but this rocky outcrop is crisscrossed with hot thermal vents. The large gathering is also unusual—these octopuses are normally solitary, and occasionally cannibalistic. None of the eggs were found to be developing, and the octopuses were observed to be under great stress. Scientists think the crevices in the rock offer attractive real estate for the cephalopods.

By Carrie Arnold

Nothing about the hundreds of octopus moms on the video feed from the submersible Alvin looked right.

"Those octopus shouldn't be there," Janet Voight, a marine biologist at the Field Museum in Chicago, said when she saw the footage.

The research vessel was exploring a rocky outcrop about 1.2 miles deep and 150 miles off Costa Rica's Pacific coast—far deeper than any other known octopus nursery, and (in theory) too warm.

"It was jaw-dropping," says Anne Hartwell, a research assistant at the University of Akron in Ohio, who led a new study on the 2014 footage of the octomoms guarding their precious eggs. (See our most beautiful octopus pictures.)

With Voigt's help, Hartwell identified the plentiful cephalopods as part of the genus Muusoctopus—and possibly even a species new to science. These octopuses are solitary and occasionally cannibalistic.

But first, she had to figure out why they were there—and why had so many of them gathered in such a small area.


It's likely because the Dorado Outcrop is valuable egg-laying real estate, Hartwell discovered.
Most of the ocean bottom is covered with soft muck called marine snow, a collection of organic debris that drifts down to the bottom. Octopi can't brood in those conditions.

Although much of the ocean water around the outcrop is colder than normal, hot hydrothermal vents crisscross the region—and it's these warmer spots that attracted the octopi. (Read about another deep-sea creature that lays its eggs on hydrothermal vents.)

"There were so many of them there that at first I thought they were all really happy," Hartwell says.

As Hartwell and Voight scrutinized the Alvin footage, however, they noticed something strange. None of the eggs were developing, and all the mothers showed signs of severe stress.

According to octopus expert Jennifer Mather, who wasn't involved in the study, the water in the crevices is likely just too hot for the deep-sea invertebrates.

But with so few places to lay their eggs, the mothers have little choice but to endure the sweltering conditions, Hartwell and colleagues conclude in their study, published recently in the journal Deep-Sea Research Part I.

"This study reminds us that the deep sea is not a uniform environment. There are lots of different microhabitats for life to exploit," says Mather, of Alberta's University of Lethbridge.

It's also possibly not that surprising, considering making sacrifices is nothing new to octopuses. (Read about fierce animal moms that go to extremes for their babies.)

In 2011, researchers began keeping tabs on a Graneledone boreopacificafemale off central California that guarded her eggs for an astonishing 4.5 years. That's the longest known developmental period for any animal.
"If all mankind were to disappear, the world would regenerate back to the rich state of equilibrium that existed ten thousand years ago."

- E.O Wilson
1 user Likes Polar's post

Canada Wolverine Offline
Regular Member
( This post was last modified: 10-13-2018, 10:00 AM by Wolverine )


Switzerland Spalea Offline
Wildanimal Lover

@Wolverine :

About #17: what must I think of that ? If the elephant really paints itself, it's wonderful, incredible ! If not, it's a case of animal abuse, an act under duress, and one more time again, this is the man who is quite despicable. I don't know. I learnt it's a jung female elephant, 4 years old...

I don't know how to react. Embarassment... What's your personal opinion ?
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