News tagged with ammonoids
First fruitful, then futile: Ammonites or the boon and bane of many offspring
Ammonites changed their reproductive strategy from initially few and large offspring to numerous and small hatchlings. Thanks to their many offspring, they survived three mass extinctions, a research team ...
Apr 23, 2012 |
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The flash recovery of ammonoids after the most massive extinction of all time
After the End-Permian extinction 252.6 million years ago, ammonoids diversified and recovered 10 to 30 times faster than previous estimates.
Other Sciences / Archaeology & Fossils
Sep 02, 2009 |
3.2 / 5 (5) |
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Search results for ammonoids
Species loss tied to ecosystem collapse and recovery
The world's oceans are under siege. Conservation biologists regularly note the precipitous decline of key species, such as cod, bluefin tuna, swordfish and sharks. Lose enough of these top-line predators (among ...
Space & Earth / Earth Sciences
Jan 10, 2011 |
5 / 5 (6) |
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Ancient predator had strongest bite of any fish, rivaling bite of large alligators and T. rex
It could bite a shark in two. It might have been the first “king of the beasts.” And it could teach scientists a lot about humans, because it is in the sister group of all jawed vertebrates.
Biology /
Nov 28, 2006 |
4.5 / 5 (116) |
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List of search results for ammonoids
