Search found 4 matches

by jsfarney
Thu Apr 21, 2011 7:36 pm
Forum: Evolution
Topic: Does human ancestry have two parents?
Replies: 10
Views: 8963

Re: Does human ancestry have two parents?

Actually, I don't understand how a species emerges. When a new species emerges, does it come from two parents? Does it emerge from a handful of individuals? For example, I know it's not this simple but say a raptor changes into a bird. Do two birds happen to be born and then they reproduce, or are t...
by jsfarney
Wed Apr 20, 2011 8:04 pm
Forum: Evolution
Topic: Does human ancestry have two parents?
Replies: 10
Views: 8963

Does human ancestry have two parents?

Does any species come from two parents?
by jsfarney
Tue Apr 19, 2011 9:45 pm
Forum: Evolution
Topic: Every species to have ever existed...
Replies: 2
Views: 2607

Every species to have ever existed...

I really like dinosaurs, and I was wondering if anyone could direct me to a map or a list of every species to have ever existed. I would also like to know about the tendencies of life over time. For example. after dinosaurs more mammals thrived. What came before dinosaurs? Thanks for the answers!
by jsfarney
Tue Apr 19, 2011 9:43 pm
Forum: Evolution
Topic: What does it mean that dinosaurs ruled the earth?
Replies: 5
Views: 3714

What does it mean that dinosaurs ruled the earth?

I have heard people say that dinosaurs ruled the earth and then when they were extinct mammals ruled the earth. What does this mean? Does it mean that they took up the most space or that they had the greatest numbers? Do mammals really rule the earth because there are way more insects than mammals? ...