Measuring animal intelligence is tricky. As humans, we can only compare the smarts of other creatures with our own — an inherently biased benchmark. "Asking which species is smarter is like asking if ...

Animals learn, solve problems and communicate in ways that catch people off guard, and the more scientists study them, the [… ...

If you spend enough time around animals, you'll see that a lot of them are smarter than we may give them credit for. For example, the world's smartest dog breed is more intelligent than a ...