What separate us humans from animals? Is it the ability to think? To use tools? Compassion?
Kate Douglas wrote a very intriguing article for New Scientist about the 6 "uniquely" human traits now found in animals.
For example, take morality:
A classic study in 1964 found that hungry rhesus monkeys would not take food they had been offered if doing so meant that another monkey received an electric shock. The same is true of rats. Does this indicate nascent morality? For decades, we have preferred to find alternative explanations, but recently ethologist Marc Bekoff from the University of Colorado at Boulder has championed the view that humans are not the only moral species. He argues that morality is common in social mammals, and that during play they learn the rights and wrongs of social interaction, the "moral norms that can then be extended to other situations such as sharing food, defending resources, grooming and giving care".
Not convincing enough? How about emotion:
Emotions allow us to bond with others, regulate our social interactions and make it possible to behave flexibly in different situations. We are not the only animals that need to do these things, so why should we be the only ones with emotions? There are many examples of apparent emotional behaviour in other animals.
Elephants caring for a crippled herd member seem to show empathy. A funeral ritual performed by magpies suggests grief. Was it spite that led a male baboon called Nick to take revenge on a rival by urinating on her? Divers who freed a humpback whale caught in a crab line describe its reaction as one of gratitude. Then there's the excited dance chimps perform when faced with a waterfall – it looks distinctly awe-inspired. These days, few doubt that animals have emotions, but whether they feel these consciously, as we do, is open to debate.
Link | See also a video round-up of animals with "human" abilities, compiled by Sandrine Ceurstemont for NS - via popurls