All spieces fall in a category (kingdom, phylum, etc) there isnt one that belongs in more then 1. - Clowd
Well, that\'s funny, because I can list two right off the top of my head.
1. Spiney Echindna
2. Duckbill Platypus
These two animals are quite unique in they are both considered mammals (Feed their young with milk they produce) and they lay eggs... something no other mammal does.. yet Insects/Fish/Reptiles/Birds do.
Heh, and lets not forget those loveable Dinosaurs who roamed the earth many millions of years ago who exibit traits found in both Reptiles and Birds.
So really, your argument should state that SOME creatures seem to spontaniously appear while others have been shown to clearly be in a transition from one kingdom, class, genus, whatever, into another.
Modern archeology has only been around for the past 200 or so years.. you can\'t possibly expect us to find missing links to all creatures in all times. The conditions must also be right to facilitate the formation of fossils... and I\'m sure there\'s been a great many species that have thrived upon this earth which have absolutely no evidence left behind due to everything from the climate they lived in to scavengers which spread the remains. More recent creatures have been discovered, and again.. if you\'d simply look in the fossil record you\'d make some remarkable discoveries. Just look at the changes proto-man took to become modern man.. from Lucy to Einstein.
BTW: You concede that you can make a new -breed- of animal by simply mating them correct? Take a Jack Russel Terrier, and breed it to be smaller, more lean, and increasingly photogenic eyes, and given enough time (several hundred thousand years), enough selective breeding, and eventually you\'ll end up with a Cat. (After all, Cats and Dogs DO share a common ancestor)