Birds use butts in their nests.
A work team from the Autonomous University of Mexico City has analyzed the materials used by birds, mainly gorrions and finches, for the construction of their nests.
In 89% of the Gorrion nests and 86% of the finch nests, the squatting cellulose has been located, and the team led by Montserrat Suárez Rodríguez has searched for the causes. The first opinions point out that the cellulose they place in their nests has had a close relationship with nicotine, which rubs certain mites and parasites, birds and their puppies can live much more tranquil in their nests, while others have said that birds use the cellulose that has been in contact with nicotine as self-medication.
But researchers have also found a lot of pesticides in their nests. The advantage that cellulose can bring can be left to nothing by pesticides.
Zer jakin behar dut? Norekin erlazionatu behar dut? Non bizi behar dut? Ardura horiekin gabiltza gizakiok gure gizarteen baitan bizitza on baten ideia bizitzeko bidean. Ondo erantzuten ez badakigu, bazterretan geratuko garen beldurrez.
Joan den astean, kanpoan geratzearen... [+]
This weekend I've been thinking about the word 'aesthetic' in relation to a phrase said by a friend: “This work is aesthetic.” I have studied the etymology of the word aesthetic, it seems that its meaning was originally perceived through the senses, and it was later associated... [+]
