Why are nervous systems evolved in animals only, and not in plants?
368281
individual Plants with more advanced nervous systems aren't morelikely to survive, since they are immobile
870190
Pardon me if I am incorrect but i dont think that plants NEED more energy rather they HAVE more energy. Each time you move up the food chain, only 10% (?) of the original energy the organism had is retained. The rest is lost. Since plants are at the bottom of the food chaing and are autotrophs, they receive 100% of the energy they converted through photosynthesis. Then the rabbit who eats the plant gets only 10% of that and the fox who eats the rabbit gets only 1%.
398613
Actually, animals preceded plants by a long way-The oxygen first produced was made by cyanobacteria and algae, not plants.  Plants did precede animals onto land, however.  Short answer, we evolved side-by-side for a very short period of time, prior to the formation of choroplasts some billion years ago or so, and after that have evolved separately.
663825
Yes, it's evolved.  It might be interesting to you that, though humans have fairly poor hearing, eyesight (though that is a myth) and sense of smell than other animals like dogs, we have a fairly sophisticated sense of taste.  Dogs, for example, have far fewer taste buds than we do, and fewer types as well.  This is likely because we are a very curious species, and can eat almost anything, so the ability to taste a broad range of foods, and detect and remember foods that are toxic, is probably highly important for humans and other omnivores, such as pigs.  Pigs also have a well-developed sense of taste.
225558
That question isn't quite right. A simple analogy to the working brain might be a moving car. Not just a part of the car is moving but all of it. You can train your brain to work better in certain aspects though. Evolution is still changing the way our brain works, for better or worse, it just adapts to the way we live.
1012778
We didn't evovle from monkeys we evolved from a monkey-like creature which evovled from something else all the way back to cells before that amino acids which form naturally in space.\n\nThis took billions of years and millions for humans to evolve all the time God was there too.
3834
They do, but some animals have a higher tolerance than humans.  Think about it, how would you feel after you eat a rotten carcass or plants off the ground.
1056346
If we assume evolution as by Darwin is basically right. Animals evolve to best survive in a certain ecological niche. In that respect intelligence was an adaptation to survive and prosper in response to certain environmental factors, and our species was the winner in that race to develop. In the same light why don’t all animals develop flight or gills etc. Other animals haven’t developed the same type of intelligence because they don’t need it. The Lingula sp. (a seashell) has existed in its current shape for well over 500 million years, as compared to our ½ to ¾ million years, it perfectly fills a certain niche and has no need to evolve further.\nHowever your question hits upon a salient point. Where is the actual evidence for this species development? We should have examples of inter-species e.g. super smart bunnies still able to breed with normal bunnies to create cleverer off spring. This missing link worried Darwin for his entire life and eventually caused him to doubt his own theory.
279116
Several billion years ago, the first simple amino acids formed crude proteins and RNA to act as simple genetic coding. Over time, these nondescript organisms evolved into bacteria, then photosynthesizing bacteria. Eventually they evolved into simple invertebrates capable of sexual reproduction, and through tweaking of the ovulatory cycle, were able to lay fertilized eggs outside of their body. These invertebrates became fish, then amphibians, then reptiles, then birds. From those birds evolved the ancestor of the chicken which after 4 billion years of evolution was already capable of laying eggs.\n\nThe end.
258814
since we all evolved form one celled organisms, which started in water, then we do come from fish. the "land egg" got us out of the water.
99484
What an odd question. They come from variations of a dog-like species that evolved. What exactly are you asking?
422256
I have all the respect in the world to Darwin. He is a good scientist, and even though evolution does indeed occur; it occurs withIN one species. So, in effect, an insect can evolve into an 'evolved' insect, but it can't evolve into a fish! Primates might 'seem' similar, but I do not hold them in the same 'species' as humans. In other words, I do not believe that WE evolved from monkeys, and therefore, we have no 'relatives' from the animal kingdom. If primates evolved into anything; I think it is into bigfoot, but not humans.
1153773
Although humans have evolved to have the greatest level of intelligence on earth,  intelligence is not only the preserve of Homo sapiens. Many physical and behavioural characteristics of animals occur among a disparate number of species for example, even though the Thylacine or Tasmanian Tiger was a marsupial it had the physical and behaviour characteristics of a wolf. This is called parallel evolution. The same can be said for intelligence, for example, cephalopod mollusc's such as squid and octopus (the most intelligent invertebrates) and dolphins and whales have both evolved seperately to become highly intelligent within their realm. \nAs for a species being a 'threat' in the race for the most intelligent \nin the future, this is very unlikely as evolututionary processes work on the order of thousands of generations. It is also unlikely that humans will survive long enough for another species to supercede us as mammals as a species generally only live on the order of 1-1.5 million years (we have passed our due date!) say compared to insects that live between 10-15 million years as a species.\nThe biggest threat from an intelligent species is more likely to be extraterrestrial!?
5138
Exactly. Humans did not evolve from primates. The theory of evolution is full of holes.
353195
*Sigh* This question has been asked so many times, it's almost sad. Here's the deal: we did not evolve directly from monkeys and apes. Humans, monkeys and apes all evolved from ONE COMMON ANCESTOR. This common ancestor has since died off. So, let's put it this way: monkeys and apes are our distant cousins, rather than our distant brothers and sisters. That make sense?\n\nHere's a better question: if man DIDN'T evolve from monkeys and apes, why are we 99% genetically similar to them? \n\nThank you, by the way, for stating monkeys AND apes in your question instead of just monkeys. Strictly speaking, we are more related to apes than to monkeys. And yes, there's a difference.
731469
There are several species of apes one type evolved based upon circumstances, remoteness and to adapt to changing environments. This would mean that the apes that were left behind would evolve in other ways ro stay in statis. This is why many species could share a common ancestor, because due to some circumstance their evolutionary path branched from the main one. \n\nTry this experiment at home. Take a species that has a short life-cycle such as a fruitfly, introduce them several into two closed systems in a tank. Place some stress on one group and you will find that the flies will have changed to overcome the stress over a few generations. The flies in the other tank will not have changed. So apes evolved in one region to deal with some form of environmental stress to enable survival, whereas apes in another area may have had an environment that was in stasis or they could cope with and so they did not evolve.
380291
We have absolutely no idea what the biological mechanism is, where the seat of conciousness is, not what other animals may or may not possess it. If anyone tells you otherwise, they are lying-We don't even understand the biological basis of simple learning and behaviour, and cannot, from a complete three dimensional diagram of a 1000-neuron worm brain, tell you anything about it's behaviour. We are as close to understanding the most profound and complex functions of the brain as a monkey is to learning computer programming. I both teach and research in this area, and I guarantee you that we are still at the most basic level of understanding brain function.