Sentences with phrase «again over hundreds of thousands of years»

Models have long suggested that Earth's orbit shifts from circular to elliptical and back again over hundreds of thousands of years, which plays a part in natural climate swings.

Not exact matches

Over hundreds and maybe thousands of years, wolves were bred and transformed and transformed again to become the variety of breeds we have.

Fraser Island has been formed over hundreds of thousands of years as winds, waves and ocean currents have carried sands from the far south - east of Australia, and from as far away as Antarctica (but before Australian and Antarctica split from each other), out to the continental shelf, and in towards the land again in a zigzag pattern, to form a string of sand islands along the Queensland coast.