Apart from human beings and other primates, the animal kingdom doesn’t have many smart members. This is not a fault, however. Evolution has enabled each species to survive as best as possible in their environment.
Crows and ravens are, however, extraordinary animals. They display a higher degree of intelligence than other birds. Their social life is complicated, and they use these relationships to survive the harsh animal kingdom. The birds are exceptional for their intelligence, and scientists have proven so in 10 unusual ways.