Some female whiskered terns deceive strange males to get extra food. These females offer copulation in return for food, but ultimately do not allow it. Until now, similar situations in the bird world have not been known, researchers say.
With the aid of simple theoretical models it is possible to build systems operating strictly according to the rules of classical physics, yet faithfully reproducing the predictions of quantum mechanics for single particles – even those that are the most paradoxical! So what is the real hallmark of quantum behaviour?
A researcher from Lublin throws the gauntlet down to bee diseases. A probiotic and a substance that helps to combat one of the diseases most frequently affecting bees are the results of several years of research conducted by Dr. Aneta Ptaszyńska from the Maria Curie-Skłodowska University in Lublin.
The whole class of genes related to the protection against pathogens is transferred between species more easily than other, randomly selected genes, Polish scientists show in their latest research. On the example of newts, they studied crossbreeding between individuals of different species.