In November, news outlets worldwide covered the story of 43 monkeys escaping from a South Carolina nonhuman primate facility.

In a groundbreaking study published journal Proceedings of the National Academy of Sciences, researchers have discovered that humans can perceive a greater range of blue tones than monkeys.

So, a rat is not a monkey is not a human. Studying the behaviour of rodents is valid ethological and neurobiological work, and animal welfare is certainly important. However, it is the pain of ...