The coelacanth didn't go extinct. They're still around today, and recently it was discovered that they're a lot more widespread than they originally thought.
When the first one seen by modern biologists was hauled up in 1938, the scientists were amazed because the fish was a representative of a branch of fish (the lobe-finned fish) that was thought to have gone extinct hundreds of millions of years ago.
Science books and the like always go on about the coelacanth being a "living fossil" - some ancient relic of a prehistoric age that survived unchanged for untold millennia, but that's not entirely true.
Latimeria (the coelacanth) is actually a highly derived form, not at all similar to most of the lobe-finned fish from the fossil record. Rather than being a shallow water, swamp dwelling critter that gulps air and could even come up on land, Latimeria has a variety of adaptations (such as an oil-filled swim bladder) that allow it survive very well in deep, deep water, but not so well near the surface.
It survived the untold millennia not by maintaining some ancient way of life, but by evolving in a completely different direction from that taken by another set of descendants of the lobe-finned fish. That other group conquered the land, becoming the first amphibians, which led to amphibians, reptiles, mammals, birds and eventually became bats, squirrels, snakes, lizards, turtles, and hippoes.
The group represented by Latimeria took to the deep ocean, and survived down there by being deep ocean fish. It was a successful niche, and they had baby deep ocean fish which were also successful, and that way of life continued (as it has for thousands of species of other kinds of fish) to the modern day.
2007-03-08 10:14:55
·
answer #1
·
answered by Anonymous
·
6⤊
0⤋
If I were a coelacanth and I was a few inches long and I was going extinct in the shallow water, I would move into very deep water and grow 5 feet long and that way I would not get extinct.
2007-03-09 01:52:22
·
answer #2
·
answered by The First Dragon 7
·
0⤊
0⤋
Coelacanth are NOT extinct! They were first discovered as fossils,and since no one had ever seen one before they were thought to be extinct.Just like dinosaur bones.
But some time back in the late 20th century a coelacanth was brought up in the nets of a fishing boat.The specimen found was virtually identical to the fossil remains that it was compared to.
2007-03-08 18:11:20
·
answer #3
·
answered by Danny 5
·
2⤊
0⤋
The Coelacanth still exist, mainly off two of the islands of Comoros. They exist just as other fish (I use that term loosely) exist. The majority of the oceans and the creatures in it are still unknown to us, by no means should you assume that we know any more than a little about the world around us. I suggest you read the book "A Fish Caught In Time", it is about the discovery of the Coelacanth, and is one of my favorite books of all time. If you are interested in cryptozoology, I suggest that you read Bernard Huevelman's "On the Track of Unknown Animals."
2007-03-08 21:13:44
·
answer #4
·
answered by Factual Pterodactyl 2
·
0⤊
0⤋
Just like any other thing they just didnt go extinct because they kept on living. Any animal or plant has an evironment that they are adapted to live in, if that environment continues to exist and nothing outcompetes them for resources they generally stick around.
Ceoelocanths are not extinct now they are just rare. They are not even extremely rare they just live where we cant go easily (very deep water).
The only reason people thought they were extinct is that they are rare, and live in very deep water (where people generaly were not looking for them).
2007-03-08 18:11:55
·
answer #5
·
answered by Dr Fred 3
·
1⤊
0⤋
How does anything go extinct? The last reproducing pair die.
2007-03-08 18:06:31
·
answer #6
·
answered by NJGuy 5
·
0⤊
0⤋
Cealocanths are not extinct...
2007-03-08 18:10:31
·
answer #7
·
answered by Anonymous
·
1⤊
0⤋