or something of the sort, just wondering
2006-11-19 07:17:40 · 8 answers · asked by Anonymous in Society & Culture ➔ Religion & Spirituality
Why not? Fish love Cheerios, too!
2006-11-19 07:19:28 · answer #1 · answered by Anonymous · 3⤊ 1⤋
Something of the sort. "Evolution" is a whole load of theories and many have different explanation for the evolution of land animals. Some point to the lungfish - which can survive outside water and they thoerise that their fins became legs.
Others make a lot of a frog/newt/some slimy thing that lived in creeks (can you tell I'm not a trained zoologist?). This thing didn't swim like fish - it lived in seeweedy places and sort of pulled itself around with its limbs. The scientist reckon that these limbs are a lot more like land animals limbs that deformed fins. It also only had four of these limbs (ignoring the tail), whilst fish have loads of fins. Now every land animal of the higher orders (not insects) only has four limbs (apart from the tail) - so it'd look pretty likely that they all descended from something with just the four limbs.
Of course there's always the question of what THAT evolved from.
2006-11-19 15:36:35 · answer #2 · answered by anthonypaullloyd 5 · 1⤊ 0⤋
Something like that. Terestrial vertebrates (amphibians, reptiles, mammals and birds) are "tetrapods", based on a four limb configuration. With the exception of a few creatures that have evolved to lose one of both pairs of limbs (e.g. whales and snakes), this configuration is standard and has evolved to a variety of forms.
This configuration traces back to a lobe-finned fish that lived about 400 million years ago. This is not the first creature we evolved from, but it is a critical link with a well characterized fossil record.
2006-11-19 17:08:52 · answer #3 · answered by novangelis 7 · 0⤊ 0⤋
Yes. All tetrapods (four limbed animals) had a common fish ancestor. This includes reptiles, ambphibians, and mammals.
See the link below showing all vertebrates (animals with an internal skeleton) and look in the upper part of the tree where it shows tetrapods. The top most line (Amniota) is the line that humans evolved from.
2006-11-19 16:02:45 · answer #4 · answered by Jim L 5 · 1⤊ 0⤋
No. Water is made of hydrogen & oxygen. Life involves (among other things) complex chemicals called organic compounds, which require carbon. So, the water did not just magically turn into fish. There were billions of steps over billions of years just to get to the point of primitive fish.
2006-11-19 15:24:41 · answer #5 · answered by BabyBear 4 · 3⤊ 0⤋
Its believed the first life on earth came from the oceans if that what you mean. But thats a more, how did life begin than evolution question.
2006-11-19 15:19:44 · answer #6 · answered by Claire O 5 · 1⤊ 0⤋
Yes, tetrapod vertebrates evolved from fish.
Fish evolved from invertebrates.
2006-11-19 15:20:29 · answer #7 · answered by Elly 5 · 5⤊ 0⤋
rofl. No....
Actually, the first life was a single celled organism. It went from there.
2006-11-19 15:20:52 · answer #8 · answered by Anonymous · 2⤊ 0⤋