450 million year old fossils of Horseshoe Crab indicate no change to todays specimens. Darwin theory is false?

Answer 1

Fossil horseshoe crabs date from the Ordovician period, 500 million years ago. Their ancestors were closely related to eurypterids or sea scorpions, any member of a subclass of extinct arthropods dominant in freshwater and brackish inland seas from about 500 to 230 million years ago, especially during the Silurian and Devonian periods. Eurypterids somewhat resembled the unrelated land scorpions, and some similarly bore poisonous stingers. They had a chitinous exoskeleton and generally had four to five pairs of walking legs, a pair of chelicerae (sharp, pincerlike appendages), a pair of compound eyes, and a pair of simple eyes. Some eurypterids grew to almost 3 m (almost 9 ft) long, but, generally, most were much smaller.


But today these animals are intermediate in structure between crustaceans and arachnids and were formerly classified as an order of the arachnid class of arthropods. They are more closely related to spiders than to crabs. They are dark brown and reache a length of about 60 cm (about 24 in). The head and thorax are fused into a cephalothorax, which is covered above with a hard, thick, horseshoe-curved shell. The small abdomen is covered with a narrow shell hinged from the main shell at the front and terminating in a long, sharp spine. They have a large compound eye on each side of the cephalothorax, two pairs of smaller, simple eyes between the compound eyes, and five light-receptive organs beneath the shell. The mouth is in the middle of the underside of the cephalothorax. On each side of the mouth is a pair of pincers (chelicerae) for seizing food, and six pairs of walking legs, the last of which is rudimentary. The underside of the abdomen bears six additional pairs of appendages; the first covers the genital opening, the other five are modified as gills.Now they are classified as Limulus polyphemus.

So they also have evolved and changed. Darwin's theory is applicable here. But i think it is not perfect. Survival of the fittest is true to some extent. But for now Darwins theory is acceptable coz we don't have any other.

Count Dracula.

Answer 2

Darwin's Theory of Evolution is the widely held notion that all life is related and has descended from a common ancestor: the birds and the bananas, the fishes and the flowers -- all related.

Darwin's general theory presumes the development of life from non-life and stresses a purely naturalistic (undirected) "descent with modification". That is, complex creatures evolve from more simplistic ancestors naturally over time.

In a nutshell, as random genetic mutations occur within an organism's genetic code, the beneficial mutations are preserved because they aid survival -- a process known as "natural selection." These beneficial mutations are passed on to the next generation. Over time, beneficial mutations accumulate and the result is an entirely different organism (not just a variation of the original, but an entirely different creature).

Saying that, maybe the Horseshoe Crab hasn't need to evolve to aid survival over the last 450 million years.

Answer 3

That is incorrect. The species of horseshoe crabs, sharks, etc. which existed millions of years ago were distinctly different from the horseshoe crabs and sharks of today. Different enough to indicate that they were definitely distinct species. But similar enough to show that they are definitely horseshoe crabs and sharks. The rate of evolution in these groups therefore has been relatively slow, but has clearly occurred. There is no species alive on earth today that was alive five million years ago. Things change. All things. Face it.

Even if it were true that these few forms showed no change at all, it wouldn't disprove natural selection, It would merely demonstrate that these particular forms were particularly well adapted to their environment, that their environment hasn't changed much in the past few million years, and that therefore the selective pressure on these forms was slight. Maybe horseshoe crabs should have evolved more because at present they are on the verge of extinction, just like the brachiopods. Today there are only three widely dispersed species of horseshoe crabs left in the world, whereas millions of years ago there were many species worldwide.

Answer 4

There are less than 50,000 hours in 5 years. If every fossil that supports the theory of evolution was hidden by Darwin on a 5-year voyage, he not only had the ability to teleport, but he apparently had no need for sleep and could hide a fossil in a matter of minutes, and this assumes he made all the fossils beforehand. I think this makes Darwin a figure worthy of worship.

Answer 5

The creationists jumped for joy when they found fossil human footprints in the Grand Canyon ,in the same strata as dinosaur remains. However red faces all round when the "footprints" turned out to be fakes! But they did not say "oh, sorry!" they conveniently forgot about it. Creationists will try and tell you that the Grand Canyon was formed during the biblical flood, but they can't tell you how the surrounding mile high sedimentary deposits could have formed in only 6000 years.
There is a little brachiopod that lives some mudflats off the coast of Japan. Known as Linguella, similar fossils have been found in strata 570 my. Things do not "have to" evolve. the animal is perfectly suited to its environment, there is no need.

Answer 6

Not unchanged, but mostly unchanged.

Nature came up with an enduring design. One out of thousands. Compare the horseshoe crab's relative success to the demise of the trilobites 250 million years ago.

Answer 7

Natural selection takes place when it's needed .struggle for existence is always going on.. in this struggle it is the fittest that survive.. and the fittest are those that are best adapted to the life they lead... horseshoe is well adapted.to it's environment .there is no need for natural selection to kick in to evolve or unfold the spices ..
in any event .Evolution the word means unfolding meaning gradual process by which all the forms of life to day have evolved or unfolded from early forms which were on earth in the distant past ..ie what spices horseshoe evolve from ??

Answer 8

All I know is that Darwin's book, The Origin of Species, never mentions the word Evolution.

Go figure.

Answer 9

They have also found the fossilized remains of trilobites with a sandal print smashing it. Real scientists will tell you they do not know the age of the earth but if they had to guess it's about 6000 yrs. old. Also they find dinosaur footprints along with humans but they don't like to admit it. Remember it was always a theory. Even Darwin did not believe it. Scientists just took what they wanted and ran with it. Also it's been proven that an animal or plant can not change their DNA. It's impossible.

Answer 10

God got one creation right. He is still working out the problems with the other 10 billion.