Search found 4 matches

by Grisner
Thu Jun 27, 2013 5:23 pm
Forum: Evolution
Topic: A little help
Replies: 5
Views: 7360

Re: A little help

I tend to agree with you that vestigial structures should not have needed functions. However, I have read some material that states that they can have lesser functions as their primary functions become obsolete. It seems to be somewhat confusing depending on where you read. As far as organs used by ...
by Grisner
Wed Jun 26, 2013 3:57 pm
Forum: Evolution
Topic: A little help
Replies: 5
Views: 7360

Re: A little help

In regards to vestigial structures I am referring to organs such as the appendix or bones and limbs similar to what is occasionally found in whales. Essentially organs, limbs etc that are believed to once have been more developed in ancestral species that have lost their primary functions but still ...
by Grisner
Wed Jun 26, 2013 12:49 am
Forum: Zoology Discussion
Topic: Small Mammal's Lower Jaw? Very unique- trying to identify
Replies: 5
Views: 9378

Re: Small Mammal's Lower Jaw? Very unique- trying to identify

I will go ahead and make the assertion that there is some serious deformation of the jaw. It's been awhile but I do see what I would call carnassials which would make it a carnivore, assuming that they are carnassials. Incisor count eliminates marsupial so if I had to guess it would be a small fox o...
by Grisner
Tue Jun 25, 2013 5:17 pm
Forum: Evolution
Topic: A little help
Replies: 5
Views: 7360

A little help

I am just trying to get a few things clear 1) All life came from a single specimen? 2) All evolution stems from random mutations? (random being the key question here) 3)Related to question 2, but environment does not play a role in mutations other than natural selection? 4) Vestigial structures can ...