Claims for mirror self-recognition have been made for numerous species ranging from
dolphins and elephants to fish and ants. But based on rigorous, reproducible experimental …

Mirror self-recognition (MSR) assessed by the Mark Test has been the staple test for the
study of animal self-awareness. When tested in this paradigm, corvid species return …

Self-recognition is a trait presumed to be associated with high levels of cognition and
something previously considered to be exclusive to humans and possibly apes. The most …

The increasing demand on adapting modern livestock farming to higher animal welfare
standards requires a thorough understanding of a species' cognitive abilities to determine …

Earlier evidence suggests that besides humans, some species of mammals and birds
demonstrate visual self-recognition, assessed by the controversial “mark” test. Whereas …

The distribution of self-awareness across species is important to understand, not only as a
matter of scientific interest but also because of its implications for the ethical standing of non …

So far, only a handful of species have successfully passed the mirror test, showing the mirror
self-recognition ability. Birds that have been claimed to show this ability are all corvids. In …

Bird cognition is an immensely complex topic. Many factors influence how birds acquire,
process and act upon obtained information. Some bird groups outshine others regarding …