When Life Nearly Died
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When Life Nearly Died
Description
Some 250 million years ago, 90% of life on earth was wiped out. It was the greatest mass extinction ever. What caused this catastrophe? In this revised and expanded edition of a classic account, Michael J. Benton assesses the competing claims for a meteorite impact or a volcanic eruption in Siberia and brings the story thoroughly up to date.
Hundreds of geologists and palaeontologists have been investigating all aspects of this astonishing event, conducting fieldwork around the world, especially in South China and Russia. New details allow us to demonstrate the close tie between the acid rain crisis on land and the anoxia in the oceans. Importantly, our view of the timing of the crisis has advanced enormously, with not only far greater precision in dating, but also the demonstration that there were two peaks of extinction, and then repeated crises for 5 million years afterwards.
A great deal of new research has focused also on the slow recovery of life to a more normal state. New sections explore how the great Mesozoic sea dragons became established at the tops of the marine food pyramids, and how, unexpectedly, the crisis set in motion one of the greatest events in palaeontological history: the origin of the dinosaurs.
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- Supplier delays: Occasionally a supplier is delayed, or their stock information turns out to be inaccurate. We’ll keep your order open for up to 60 days. If an item hasn’t shipped or isn’t on its way to us by then, we’ll cancel that item and refund it.
Faulty or damaged items are always covered. See Returns.
Returns
Damaged or incorrect items (within 30 days)
If an item arrives damaged or isn’t what you ordered, contact us within 30 days of delivery. We may ask for a photo, and if we need the item back we’ll send a prepaid return label, so it costs you nothing. You’ll receive a replacement or refund, as guaranteed under the Australian Consumer Law.
Change of mind (within 30 days)
We offer a refund or store credit for change of mind within 30 days of purchase when:
- you have your proof of purchase;
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- it isn’t a sale item, special order, custom item or gift voucher.
You pay the postage to return change-of-mind items. Change-of-mind returns aren’t available for print-on-demand titles or bulk orders with special pricing.
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