Discussion by: aydinHello,
It’s a bit embarrassing but I was asked the following question and wasn’t able to give a satisfactory answer;
“Fossil record shows that certain animals that we see today have not changed for hundreds of millions years, animals like crocodiles, sharks and turtles.. How can this be explained by the theory of evolution?”
I know that if the environment remains that same there is no need for an organism to evolve, but some organisms have remained essentially the same for 200 millions years!! Don’t tell me this is not a long time because it is, even on evolutionary process scale. There are certain species that evolve even within our living time frame, couple of hundreds of years and there is a new species or subspecies .. How come a shark hasn’t changed in 200 million years?? Even the chemistry of the oceans must have changed…
I answered by saying that “since their environment hasn’t changed, they didn’t change either”. But I didn’t quite believed what I said..
Thank you in advance!