Paul the Octopus :
But the flag of Spain , with its broad yellow stripe, and the flag of Serbia , with its contrast of blue and white, are more vivid still, possibly explaining why Paul picked those countries over Germany. Menashi, a quiet grandfather with a dark moustache, volunteers every Tuesday. Octopus and human intelligence evolved independently.
Octopuses or octopi yahoo dating - Recent Posts
An octopus is a cephalopod mollusk of the order Octopoda. The word octopi refers to more than one of those animals. Despite its relatively common usage, octopi is an improper plural.
Latin words are sometimes pluralized with an -i, but octopus originates from Greek, not Latin. As the Oxford English Dictionary states, the plural form octopi is mistakenly formed according to rules for Latin plurals, and is therefore incorrect.
Since octopus is Greek in origin, the classical Greek plural is octopodes, a form that is still occasionally used but very rarely. The standard plural form in both American and British English has come to be octopuses, which has predominated for the last years. Octopi is a common mistake, and octopodes is seen as pedantic and would needlessly confuse your readers. When to Use Octopuses What does octopuses mean? Octopuses is the standard plural form of octopus.
Over the years, it has become the accepted form in both American and British English and is used with much greater frequency than octopi. The above chart graphs octopuses vs. Here are some examples of octopuses, Ten sharks battled 20 octopuses, and lost. The zoo housed otters, penguins, and octopuses. Both the male and female octopuses die soon after mating. The male dies a few months afterwards, while female dies shortly after the eggs hatch.
For octopuses, mating is a pretty subdued affair. A few species have flashy mating rituals, but many octopuses seem like they're just conducting business. The male octopus has a modified arm called the hectocotylus, which is about a meter long and holds rows of sperm. Depending on the species, he will either approach a receptive female and insert the arm into her oviduct or take off the arm and give it to her to store in her mantle for later.
In the latter scenario, the female keeps the arm until she lays her eggs, at which time she takes the arm out and spreads the sperm over her eggs to fertilize them. The female meticulously cares for her eggs until they hatch, forgoing food the entire time. Her left eye octopuses have one dominant eye like humans have a dominant hand swiveled in its socket to meet mine.
Each arm has more than two hundred of them. The famous naturalist and explorer William Beebe found the touch of the octopus repulsive. Although an octopus can taste with all of its skin, in the suckers both taste and touch are exquisitely developed. Athena was tasting me and feeling me at once, knowing my skin, and possibly the blood and bone beneath, in a way I could never fathom. When I stroked her soft head with my fingertips, she changed color beneath my touch, her ruby-flecked skin going white and smooth.
This, I learned, is a sign of a relaxed octopus. An agitated giant Pacific octopus turns red, its skin gets pimply, and it erects two papillae over the eyes, which some divers say look like horns. One volunteer who interacted with an octopus left the aquarium with arms covered in red hickeys. Occasionally an octopus takes a dislike to someone. Using his funnel, the siphon near the side of the head used to jet through the sea, Truman would shoot a soaking stream of salt water at this young woman whenever he got a chance.
Later, she quit her volunteer position for college. Athena was remarkably gentle with me — even as she began to transfer her grip from her smaller, outer suckers to the larger ones. She seemed to be slowly but steadily pulling me into her tank. Had it been big enough to accommodate my body, I would have gone in willingly.
But at this point, I asked Dowd if perhaps I should try to detach from some of the suckers. With his help, Athena and I pulled gently apart. I was honored that she appeared comfortable with me.
But what did she know about me that informed her opinion? When Athena looked into my eyes, what was she thinking? But her study subjects were constantly thwarting her. The first problem was keeping the octopuses alive. The four-hundred-gallon tank was divided into separate compartments for each animal. But even though students hammered in dividers, the octopuses found ways to dig beneath them — and eat each other. Octopuses die after mating and laying eggs, but first they go senile, acting like a person with dementia.
One senile octopus crawled out of the tank, squeezed into a crack in the wall, dried up, and died. It seemed to Warburton that some of the octopuses were purposely uncooperative. To run the T-maze, the pre-veterinary student had to scoop an animal from its tank with a net and transfer it to a bucket.
With bucket firmly covered, octopus and researcher would take the elevator down to the room with the maze. Some octopuses did not like being removed from their tanks. They would hold on to some object with their arms and not let go.
Some would let themselves be captured, only to use the net as a trampoline. While on the move, they have been discovered on carpets, along bookshelves, in a teapot, and inside the aquarium tanks of other fish — upon whom they have usually been dining. Even though the Middlebury octopuses were disaster prone, Warburton liked certain individuals very much. One of the joubini was such a problem they named her The Bitch.
Warburton used Wendy as part of her thesis presentation, a formal event that was videotaped. First Wendy squirted salt water at her, drenching her nice suit.
Then, as Warburton tried to show how octopuses use the T-maze, Wendy scurried to the bottom of the tank and hid in the sand. Warburton says the whole debacle occurred because the octopus realized in advance what was going to happen. But Warburton learned far more than her experiments revealed. I know they watched me. I know they sometimes followed me. But they are so different from anything we normally study. How do you prove the intelligence of someone so different?
One yardstick scientists use is brain size, since humans have big brains. As is well known in electronics, anything can be miniaturized. Small brain size was the evidence once used to argue that birds were stupid — before some birds were proven intelligent enough to compose music, invent dance steps, ask questions, and do math.
Octopuses have the largest brains of any invertebrate. Another measure of intelligence: The common octopus has about million of them in its brain. A human has billion. But this is where things get weird. One video online shows a mimic octopus alternately morphing into a flatfish, several sea snakes, and a lionfish by changing color, altering the texture of its skin, and shifting the position of its body.
Another video shows an octopus materializing from a clump of algae. Its skin exactly matches the algae from which it seems to bloom — until it swims away. The deepest layer passively reflects background light. The topmost may contain the colors yellow, red, brown, and black.
The middle layer shows an array of glittering blues, greens, and golds. But how does an octopus decide what animal to mimic, what colors to turn? Scientists have no idea, especially given that octopuses are likely colorblind. But new evidence suggests a breathtaking possibility. Woods Hole Marine Biological Laboratory and University of Washington researchers found that the skin of the cuttlefish Sepia officinalis, a color-changing cousin of octopuses, contains gene sequences usually expressed only in the light-sensing retina of the eye.
In other words, cephalopods — octopuses, cuttlefish, and squid — may be able to see with their skin. Like dolphins, they can locate their prey using echoes. And a bat is a fellow mammal like us — not someone who tastes with its suckers, sees with its skin, and whose severed arms can wander about, each with a mind of its own.
Breathing through a snorkel, she was watching Octopus vulgaris — the common octopus. A hunting expedition could take five minutes or three hours. The octopus would capture something, inject it with venom, and carry it home to eat.
A home, or den, which an octopus may occupy only a few days before switching to a new one, is a place where the shell-less octopus can safely hide: