10 votes
Accepted

If Earth had rings would gravity exerted by Earth decrease?

Rings wouldn't decrease the gravity much, but the exact amount would depend on the exact geometry of the rings. One reason is that the gravity of one side of the ring would partially cancel the ...
Camilo Rada's user avatar
  • 17.6k
7 votes

Dino-birds or "Pigeon-o-saurus"

First, let me link a variety of popular science articles which can give you some background explanation. Here are Scientific American, Smithsonian, and Audubon magazines. The 'smoking gun' evidence ...
kingledion's user avatar
  • 3,376
7 votes
Accepted

Book on the history of Earth and life on Earth

Cowen's History of Life Your best bet is Cowen's History of Life, it is an excellent introductory textbooks for paleontology well laid out and clearly written with introductory students in mind so a ...
John's user avatar
  • 6,906
5 votes
Accepted

What was there before the Paleolithic and where really did life start for us humans, not like homo?

Forty years ago, protein electrophoresis and other molecular types of dating were pointing to a date of 4.5 million years BP for the separation of the hominid line from the pongid (great ape) line, ...
Michael Walsby's user avatar
5 votes

Is there any correlation between Australia's uranium deposits and the unique animals?

No. The reason for Australia’s unique evolution is that it was relatively isolated from the rest of the world. Australia isn’t too radioactive either. The fact that it has more uranium deposits than ...
Gimelist's user avatar
  • 23.1k
3 votes
Accepted

Is there any correlation between Australia's uranium deposits and the unique animals?

Ahhhh, probably not. If, for example, you navigate to Marsupial at Wikipedia and click on the wonderful (it really really is!) DyMaxion map at the bottom of the info panel, you wiil see that a large ...
gorblimey's user avatar
2 votes

Migration Routes for Animals from Asia to America

The jaguar is a close relative of the Asiatic leopard and must have had a common ancestor within the last 5 million years. The South American tapir is obviously closely related to the Malayan tapir ...
David Hammen's user avatar
  • 23.5k
2 votes

Darwin theory about Japan and China

At the northern and southern ends of the Sea of Japan, there are only short stretches of very shallow sea separating Japan from the mainland. During the Ice Age which ended 12,000 years ago, sea ...
Michael Walsby's user avatar
1 vote

How on "Earth" can you make all those measurements of Earth forming?

How on “Earth” can you make all those measurements of Earth forming? One word: Zircons. Zircons rank very high amongst the techniques used to measure the age of the Earth, and the age at which the ...
David Hammen's user avatar
  • 23.5k

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