When it comes to selecting a mate, females are traditionally thought of as the choosy sex; males, meanwhile, aren’t thought to be particularly picky. This makes sense for many species – the sex that invests…
Twenty years ago, Jared Diamond’s book “The Third Chimpanzee” highlighted a startling fact. If we adhere to the scientific rules for classifying species (taxonomy), humans should be classified as a third…
Crows can recognise and ascribe numerical meaning to symbols, a new study shows, suggesting that the unusually intelligent birds may be able to “read” numbers and simple icons. Crows are known for their…
A new report on Australian birds has added four more species to the critically endangered list and found that a total of 39 species or sub-species are more threatened now than they were a decade ago. The…