You would be forgiven for underestimating the intelligence of sheep, considering that their daily activities revolve around grazing. But research reported in the current issue of Nature indicates that, in fact, sheep possess more smarts than previously thought.
Keith Kendrick and colleagues at the Babraham Institute in Cambridge, England, investigated the sheep’s ability to distinguish and remember faces of both other sheep and humans. Presenting 20 sheep with pictures of 25 pairs of sheep faces, the researchers trained the animals to associate one of the pair with a food reward. They determined that the sheep could recognize the individuals associated with a reward even in profile and for up to two years. By measuring activity in the right temporal and medial frontal cortices—regions of the ovine brain associated with visual recognition—the team further discovered that sheep can remember as many as 50 sheep faces in addition to a familiar human face. And sightings of familiar faces do not go unacknowledged. The scientists report "clear behavioral signs of recognizing both absent individuals by vocalizing in response to their face pictures in the same way as they did to faces of other members of their current social circle." So the next time you hear a sheep bleat, he may just have seen a long-lost flock-mate.
The recollection of fellow sheep weakens slowly but progressively over time, the team concludes, with the memory of a specific individual fading first into a generalized category of familiar individuals before it is forgotten completely. Indeed, the face-processing system at work in the sheep brain is analogous to the mechanism by which humans remember and recognize individuals over long periods. "This suggests," the authors write, "that sheep may be capable of using the same system to remember and respond emotionally to individuals in their absence."
Sarah Graham | Scientific American
The birth of a new protein
20.10.2017 | University of Arizona
Building New Moss Factories
20.10.2017 | Albert-Ludwigs-Universität Freiburg im Breisgau
University of Maryland researchers contribute to historic detection of gravitational waves and light created by event
On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...
Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
17.10.2017 | Event News
10.10.2017 | Event News
10.10.2017 | Event News
20.10.2017 | Information Technology
20.10.2017 | Materials Sciences
20.10.2017 | Interdisciplinary Research