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Taken from AOL news (No link, sorry, members only access.)
DINOSAUR EXTINCTION THEORY BLOWN APART
NEW dinosaur discoveries have blown apart the theory that the reptiles died out as the result of a giant meteorite striking Earth.
Scientists had thought a single impact off the coast of Venezuela may have been responsible for the dinosaurs' demise.
But new evidence shows one well-known 15 mile wide meteor crater in the Ukraine had been wrongly dated.
And the discovery throws the extinction debate wide open again.
However, the leading theory is still meteor-based - but now experts believe many smaller impacts were to blame instead of one Deep Impact-style collision.
Leading US geoscientist Dr Gerta Keller said: "A tremendous amount of new data has been accumulated over the past few years that points in the direction of multiple impacts."
Other slightly less convincing extinction theories include:
-- Aliens landed on Earth and brought a killer cosmic virus with them;
-- Smaller mammals killed them off by eating their eggs;
-- Volcanic eruptions made the atmosphere unbreathable;
-- Some religions believe they never existed and in fact the fossilised bones were placed there by God.
DINOSAUR EXTINCTION THEORY BLOWN APART
NEW dinosaur discoveries have blown apart the theory that the reptiles died out as the result of a giant meteorite striking Earth.
Scientists had thought a single impact off the coast of Venezuela may have been responsible for the dinosaurs' demise.
But new evidence shows one well-known 15 mile wide meteor crater in the Ukraine had been wrongly dated.
And the discovery throws the extinction debate wide open again.
However, the leading theory is still meteor-based - but now experts believe many smaller impacts were to blame instead of one Deep Impact-style collision.
Leading US geoscientist Dr Gerta Keller said: "A tremendous amount of new data has been accumulated over the past few years that points in the direction of multiple impacts."
Other slightly less convincing extinction theories include:
-- Aliens landed on Earth and brought a killer cosmic virus with them;
-- Smaller mammals killed them off by eating their eggs;
-- Volcanic eruptions made the atmosphere unbreathable;
-- Some religions believe they never existed and in fact the fossilised bones were placed there by God.