NewTime wrote:
Why haven't other species on Earth evolved high intelligence, the ability to use complex language and the ability to create complex technology? It seems like it would be a large advantage to their survival.
It's difficult to compare intelligence between species at some point because of different environments and needs. For example, whales and dolphins don't have hands and their environment does not support fire so while they can and do manipulate their environment to some extent, they do not have a need or the physical ability to do so as much as humans, so one would expect they would not have the level of intelligence in that arena either. However perhaps one might argue that in some sence dolphins are more intelligent than humans, because despite not having arms and hands, they still are able to learn sign language and read human non verbal body language. We, on the other hand, are not so well versed at picking up dolphin body language or dolphin language in general which they seem to have. Dolphins and whales can communicate over very long distances and may very well have social IQs higher than our own. An interesting thing about dolphin culture, social hierarchy is not as fixed as it is among humans. It's more complex For example, with dolphin A and B alone, A might out rank B. But when dolphin C comes along, B might then out rank A.
Chimpanzees have better short term memory than humans and better visual pattern recognition. They are also better at solving certain tasks and puzzles.
What humans are are social, specialized tool makers. We lack a protective coat of fur and we are weak, slow, and have poor hearing and a poor sense of smell compared to other animals. In our environment, we can't survive without tools, andcour ability to conceive of them and makes them and use them and it's difficult to survive without other humans.
So it's not so much that other animals aren't necessarily as intelligent. Sometimes they're just intelligent in different ways and those ways that they are intelligent are dictated by the environment in which they evolved and have to survive in.