@Julia:
Der Kakadu Snowball soll das einzig bekannte Tier sein, das sich synchron zu einem musikalischen Rhythmus bewegen kann:
http://www.birdloversonly.org/blscience.shtml
Myron hat geschrieben:Der Kakadu Snowball soll das einzig bekannte Tier sein, das sich synchron zu einem musikalischen Rhythmus bewegen kann
stine hat geschrieben:Ein sprechender Papagei weiß nicht, was er sagt. Er kann aber erkennen, ob darauf mit Gelächter, Essen oder Schelte reagiert wird.
Klaus hat geschrieben:Warum sollte ein Pferd zählen können, oder ein Papagei reden? Das passiert nur, weil wir Menschen, Eigenschaften und Verhaltensweisen auf Tiere übertragen und uns dann darüber freuen, was die Biester alles so draufhaben.
zitiert nach John D. Barrow, Warum die Welt mathematisch ist
Ein Bauer wollte eine Krähe schießen, die regelmäßig auf einen Turm auf seinem Land geflogen kam, um von dort in sein Korn zu gehen. Sobald aber der Bauer mit seiner Flinte zu dem Turm kam, flog die Krähe davon. War er wieder fort kam sie zurück.
Frustriert von diesen Versuchen, die Krähe loszuwerden, dachte er sich eine List aus. Damit die Krähe zurückkäme, während er noch im Turm war, ging er zusammen mit einem Freund zum Turm. Die Krähe flog weg, und wenig später ging der Freund fort, während der Bauer blieb. Die Krähe kam nicht zurück. Das nächste Mal ging er mit zwei Freunden, die einer nach dem anderen gingen: wieder keine Krähe. Dann versuchte er es mit dreien: wieder nichts. Dann ging er mit vier Freunden, die wiederum einer nach dem anderen fortgingen.
Diesmal kam die Krähe zurück und der Bauer konnte sie schießen. Die Krähe hatte einen Sinn für Zahlen, der es ihr erlaubte, die Anzahl der Personen zu kontrollieren. Bei Vier aber verschwamm die Zahl in ein ungewisses Gefühl für viele.
1von6,5Milliarden hat geschrieben:Exakt dies. Ich frage mich wirklich mit welchen ideologischen Scheuklappen noch vor nicht allzulanger Zeit die "herrschende Forschermeinung" durch die Welt geforscht hat - und welche Scheuklappen sonst noch so benutzt werden.Julia hat geschrieben:Ich muss generell sagen, dass mich meistens weniger die Fähigkeiten von Tieren überraschen, sondern mehr die Tatsache, dass Menschen davon ausgegangen sind, dass sie diese Fähigkeiten nicht haben...
THE DESCENT OF MAN - CHAPTER III.
COMPARISON OF THE MENTAL POWERS OF MAN AND THE LOWER ANIMALS.
The promptings of reason, after very short experience, are well shewn by the following actions of American monkeys, which stand low in their order. Rengger, a most careful observer, states that when he first gave eggs to his monkeys in Paraguay, they smashed them, and thus lost much of their contents; afterwards they gently hit one end against some hard body, and picked off the bits of shell with their fingers. After cutting themselves only ONCE with any sharp tool, they would not touch it again, or would handle it with the greatest caution. Lumps of sugar were often given them wrapped up in paper; and Rengger sometimes put a live wasp in the paper, so that in hastily unfolding it they got stung; after this had ONCE happened, they always first held the packet to their ears to detect any movement within. (26. Mr. Belt, in his most interesting work, 'The Naturalist in Nicaragua,' 1874, (p. 119,) likewise describes various actions of a tamed Cebus, which, I think, clearly shew that this animal possessed some reasoning power.)
[...]
I will conclude by quoting a remark by the illustrious Humboldt. (28. 'Personal Narrative,' Eng. translat., vol. iii. p. 106.)"The muleteers in S. America say, 'I will not give you the mule whose step is easiest, but la mas racional,--the one that reasons best'"; and; as, he adds, "this popular expression, dictated by long experience, combats the system of animated machines, better perhaps than all the arguments of speculative philosophy."
Nevertheless some writers even yet deny that the higher animals possess a trace of reason; and they endeavour to explain away, by what appears to be mere verbiage [Geschwätz], [...]
It has, I think, now been shewn that man and the higher animals, especially the Primates, have some few instincts in common. All have the same senses, intuitions, and sensations,--similar passions, affections, and emotions, even the more complex ones, such as jealousy, suspicion, emulation, gratitude, and magnanimity; they practise deceit and are revengeful; they are sometimes susceptible to ridicule, and even have a sense of humour; they feel wonder and curiosity; they possess the same faculties of imitation, attention, deliberation, choice, memory, imagination, the association of ideas, and reason, though in very different degrees. The individuals of the same species graduate in intellect from absolute imbecility to high excellence. They are also liable to insanity, though far less often than in the case of man.
[...]
It has often been said that no animal uses any tool; but the chimpanzee in a state of nature cracks a native fruit, somewhat like a walnut, with a stone. [...] The tamed elephants in India are well known to break off branches of trees and use them to drive away the flies; and this same act has been observed in an elephant in a state of nature.
Nanna hat geschrieben:Es gab damals einen Artikel in der SZ...
Alex started ignoring questions, or giving wrong answers, seemingly deliberately. He seemed to enjoy the experimenters’ frustrated reactions, they said.
There was evidence, they added, that his stubbornness stemmed from boredom with the rewards he had been getting for right answers. The researchers found some more interesting toys to give as rewards. After two weeks of obstructionism, Alex grudgingly returned to the game, though he occasionally seemed to lapse back.
One of these apparent lapses occurred one day when an experimenter asked Alex “what color three?” Laid out before Alex were sets of two, three and six objects, each set differently colored.
Alex insisted on responding: “five.” This made no sense given that the answer was supposed to be a color.
After several tries the experimenter gave up and said: “OK, Alex, tell me: what color five?”
“None,” the bird replied. This was correct, in that there was no color that graced exactly five of the objects. The researchers went on to incorporate “none” into future trials, and Alex consistently used the word correctly, they said.
Myron hat geschrieben:Der Kakadu Snowball soll das einzig bekannte Tier sein, das sich synchron zu einem musikalischen Rhythmus bewegen kann:
http://www.birdloversonly.org/blscience.shtml
Hence it appears that Snowball is not unique, and that BPS is not the sole province of humans.
Nanna hat geschrieben:Vor ungefähr zwei Jahren ist ein berühmter Graupapagei gestorben, der anscheinend in der Lage war, nicht nur einfache Sätze selbst zu bilden, sondern auch deren Sinn zu verstehen.
Blue Whale Song Mystery Baffles Scientists
All around the world, blue whales aren’t singing like they used to, and scientists have no idea why.
The largest animals on Earth are singing in ever-deeper voices every year. Among the suggested explanations are ocean noise pollution, changing population dynamics and new mating strategies. But none of them is entirely convincing.
“We don’t have the answer. We just have a lot of recordings,” said Mark McDonald, president of Whale Acoustics, a company that specializes in the sonic monitoring of cetaceans.
McDonald and his collaborators first noticed the change eight years ago, when they kept needing to recalibrate the automated song detectors used to track blue whales off the California coast. The detectors are triggered by songs that match a particular waveform. Every year, McDonald had to set them lower.
Since then, he and Scripps Institution of Oceanography researchers Sarah Melnick and John Hildebrand have gathered thousands of blue whale recordings made since the 1960s, spanning populations from the North Atlantic to the South Pacific to the East Indian Ocean. Their analysis, published in October in Endangered Species Research, shows that the songs’ tonal frequency is falling every year by a few fractions of a hertz.
“It’s a fascinating finding,” said John Calombokidis, a blue whale expert at the Cascadia Research Collective. “It’s even more remarkable, given that the songs themselves differ in different oceans. There seem to be these distinct populations, yet they’re all showing this common shift.”
[...]
http://www.wired.com/wiredscience/2009/ ... g-mystery/
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