The observations suggest that animals have real compulsion to put non-edible things in beak while t

Orangutans use water as a tool
Everyone knows they are beautiful and are threatened with extinction, but the Macaws (Anodorhynchus hyacinthinus) just won a new reason to attract the attention of scientists and laymen. Experts in animal behavior including USP are the animals in the select but growing group of species clearomizer t2 that use some form of technology - in their case, which could loosely be compared to a kind of "opener nuts."
The bugs are owners of one of the largest and strongest beaks in birds. However, tend to draw on pieces of wood, leaves or even more unusual materials during breaks and consumption of certain very hard coconuts, but also very nutritious, abundant in their natural environment. (The coconuts clearomizer t2 trees in question are as acuri and bocaiúva.) The art of "open cans" between Macaws seems to start as an innate tendency among puppies and shall be improved with age, reveals the work of Andressa clearomizer t2 Borsari and Eduardo Ottoni, Institute of Psychology, USP.
"These coconuts are very tough - other species of macaws, for example, are not able to open them," clearomizer t2 said Borsari G1. "The blue macaws have a beak and a huge force: are experts in open coconuts palm Some researchers believe it is a case of co-evolution between parrots and palm trees:. They preying coconuts with their large beaks; palm trees with coconuts increasingly Hard selecting racks with even higher nozzle, and so on. Nevertheless, they may break during use tools, which should give some advantage, even though they are able to open without them coconuts. " clearomizer t2
Borsari is devoting his doctorate, conducted under the guidance of Ottoni, to understand exactly what that advantage. For this, the researcher spent one season in the Pantanal, watching the animals clearomizer t2 in their habitat, and snooped learning a baby macaw raised by his parents in captivity.
Some of the more detailed observations, however, the study came from a breeder in Juquitiba, in Greater São Paulo. clearomizer t2 Researchers acompanharham clearomizer t2 the adventures of two adults (Barney and Saphira bed) and her four cubs (Hillary, Bella, Luiza and Simon), separated from their parents at birth and raised by humans. The researchers observed the animals to feed, also offering them indaiá of coconuts, which are the same irreducible type normally clearomizer t2 devoured by wild hyacinth macaws.
The observations suggest that animals have real compulsion to put non-edible things in beak while they feed - the "kids" in particular came to using pieces of plastic, shoelaces and even feces. The adults, more restrained, confined themselves to pieces of wood and leaves.
In most skillful critters, who managed to eat the coconuts indaiá (beyond mature macaws, also the young Hillary and Simon), the technique worked like this: the coquinho was positioned under the top of the beak, and the worm began to a slot make it to the bottom of the nozzle. The animal tore a piece of wood from his perch, clearomizer t2 the language used to position it underneath the top of the tip and with a paw, the coquinho pushed against clearomizer t2 the wood. All cases in which coconuts were opened successfully involved the use of tools at some point.
The exact role of the "opener", however, remains to be elucidated in further experiments. He can simply prevent the coconuts from spinning in beak, lessen the impact of the breach or made a lever, clearomizer t2 multiplying clearomizer t2 the impact of the already powerful beak of Macaws.
Another interesting factor to be studied is the social: "They are birds that feed in groups, and the chicks follow their parents for over a year, which could create opportunities for social learning [the break]," said Borsari. Perhaps the innate taste for shove all sorts of things at the nozzle is complemented clearomizer t2 by observation of more refined technique of parents.
Another interesting question is the conjunction of a food resource inaccessible with the "invention" of the technique for using it. It's something that seems to be present in other technological animals such as humans, chimpanzees, capuchin monkeys and even dolphins. But as Macaws, somehow, come with built-opener "factory" (his superbico), it is too early to say whether clearomizer t2 this is the reason why they have "invented" the technology.
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