Why don't we have horns and claws?
831533
Apparently, you've never met my ex-wife.
385063
Yes because they are reptiles.\n\nI could wax lyrical for pages and pages (see above) and you raise an excellent point about vertebrae, however thay are reptiles.
685411
oh man, this is great. lets see. how about a 50 foot dragon with spikes all over and ten heads made of tentacles with poisonous barbs on each tentacle and a tail made of thousands of venomous snakes . the wings would be a sort of patchwork of other animals wings, i haven't decided which ones, or maybe robotic. yeah, definitely robotic wings. but not cheesy, more like giger organic robotic. it would have six legs with giant hooves and hard scales, not like fish scales, more like reptilian scales. it has 13 eyes 6 organs for hearing and a swim bladder. its roar would be like a mix between godzilla and roseanne. and when it opened its mouths bees would fly out and sting you. bees with frickin laser beams on their heads.
931001
sharp teeth and claws, \nretractable claws\nflexible spine, \nmuscles for strength and agility, \neyes which see well at night\nCamouflaged fur
294512
There is a tailbone in humans which is redundant, just like an appendix. Appendix has use for animals in digesting raw food. People stopped eating raw food, making it redundant. \nIf you check the ancient drawings, ancient humans had a lot of body hair, but as humans evovled, the hair became less.\n\nTo the person above - Neanderthal, Cro-magnan, Homo-erectus fossils are what you can call a "Transitional" fossil to prove evolution.\n\nTo the person who asked the question - Mutation, adaptation and evolution are inter-linked. Monkeys did not evolve into humans overnight. Or it wasnt a case that monkeys gave birth to humans suddenly. Adaptations and mutation over generations results into evolution. In fact you can say that Mutation and adaptations are preliminary steps of evolution.\n\nTo hutsong - Evolution is how life evolved from primitive life form into the current species. It, in no way speaks how life was created in the first way.\nAlso you talk about experiments in labs have proved that one life-form can not evolve into a different life-form. Heres a  question for you - How many years are these laboratories set up for? If the answer is less than 500 years, then its not enough time frame for any evolution to be seen.\nAlso you are giving links to a website which can is run by christains who are staunch opponnents of evolution not scientifically but religiously. So that has no weight at all. Maybe links to magazines like Science or Nature would have been more convincing.\n\nThumbs up to emilyrose!!
60500
No.  Horse DNA doesn't contain code for a horn or wings, so we would need to graft these features from another animal.  So far cross-species grafting techniques are not nearly sophisticated enough to give a horse wings, though we could theoretically make horse bioluminesent, so we could have glowing horses ;)
860345
No, they aren't.\n\nHumans have a stronger preference for one hand over the other than other animals. That is thought to be due to language being localized on one side of the brain, so motor control gets unevenly dominant (your right side of the brain controls your left hand). Animals don't have the languge skills, and tend to use both paws about equally.
192045
This is a very good question. Also I can tell for a change it is not a homeworkk question (thank you).\n\nIt's weird ,isn't it? Humanity in less than 10,000 years from our first civilization until now, monkies in that time have done nothing. Makes you wonder, doesn't it? The only thing I can think of is our larger brains. So will any animal ever reach our level of advancement? I doubt it. Some animals do communicate with each other. Some animals have hands like you said so they could build houses with those hands and tools, but they don't. Maybe humanity is the like the Chosen Ones, and can do so much more than animals.
206614
some animals were them on the outsied insects and lobsters.\ninvertabreas dont have a spine and some dont have any bones!
822408
insects have an ectoskeleton, it's on the outside.  It's like armour.  Now imagine if they were the size of humans, it would be very easy for them to take over the world.  They'd be unstoppable!
750785
because they should be wearing horns since they are bulls after all?
3478
Cimpanzees and most of the higher primates have no tails.  It seems that somewhere along the evolutionary marathon tails got discarded, but it was relatively recently....
107735
Animals have bones instead.\n\nHE'S DEAD JIM !!!
284395
similar structures with different functions...\n\nBats arms and human arms have similar structure, but different function. Bats wings fly and we use our hands for dexterity
34428
Richard Dawkins attempts to answer this : \n[The embryo of every 4-limbed  vertebrate has five "fingers and toes".]\n"We tend to think that  the possession of 5 digits is deeply stamped in the hands and feet  of tetrapods (4-limbed  vertebrates).  Yet {some early vertebrates] had  7 toes....8 toes....6 toes. ...My tentative guess is that\nin those early times the different species really did benefit from their respective numbers of toes...Later the tetrapod limb design hardened at 5 digits because some internal embryonic  process came to rely upon that number. In the adult the number is frequently reduced...in..modern horses to just one, the middle toe."
438829
because their horns don't work.
51049
Not the tailbone; probably not arm or leg bones- ribs are pretty important, so are the spine and the skull