The team took 40 sheep of a Welsh lowland breed called Clun Forest, and isolated them one at a time in a funnel-shaped enclosure. For the first 15 minutes, four identical pictures of a white inverted triangle were projected on to the rear wall. For the next 15 minutes, the animals were shown either four photos of an unfamiliar sheep face or four photos of an unknown goat face.
The animals seemed to ignore the triangle pictures, but they actively spent time looking at the sheep photos and even moved to be close to them. "The face pictures affected every single measure of fear and stress that we took," says Kendrick.
Надо, что ли, повесить на столе или на стене фотографию кого-нибудь из своего стада.
- Friendly faces calm stressed sheep @ nature.com