It used to be thought that only chimpanzees, dolphins, elephants and humans could recognize their reflection in a mirror. Now German scientists have added magpies to that list. When magpies were marked with a red or yellow dot that was visible to the birds only in a mirror, they scratched the dot. To prove the birds scratched the dot because they recognized themselves in the mirror - and not because they were investigating what had been done to them - other magpies were marked with a black dot. Those birds didn’t scratch. This means self-awareness isn’t limited to mammals. It also means birdbrains are brainier than we’d previously thought.
A German study done by the University of Duisburg-Essen found that cows can sense the Earth’s magnetic field. Using Google Earth, the researchers looked at more than 8,500 cows in 300 pastures all over the world. They discovered that cows line up their bodies to face north or south when they are grazing or resting - regardless of the sun’s position or which direction the wind is blowing. Although birds and bats use internal compasses for navigation, the researchers don’t know why cows use theirs. For now they’re cowed by the […]
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Most of us have described a new beginning to a relationship using such terminology as ‘the chemistry is great’. But is there any validity to such a statement; in reality, does chemistry have anything to do with our attraction to or interactions with others. To put it quite simply, yes it does, by way of pheromones.
Now you may be wondering what pheromones are. I think an easy way of explaining this is to use animals such as dogs as examples. Although this example is extreme it will help to make the point. We all understand that female dogs come into season, or ‘heat’ as it is commonly referred to. During such a time male dogs in nearby locations will smell the female dog and be affected by that.
The female dog may have a different temperament during that time and her focus may seem to be only on being with a male dog. Although the details are quite different when we talk about human beings, the concept is the same.
We give off pheromones, which are naturally occurring substances. These pheromones convey airborne messages that can generate social responses from others of the same species. The pheromones […]
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