Meteor evidence linked to another Mass Extinction Event

Interesting if this holds up under further investigation.As many here already know, the Permian-Triassic event was the greatest known mass extinction event; about 95% of known marine species and 70% of known land species became extinct.

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We need to get off this rock in a big way. Too much like eggs in one basket at the moment.

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Oh, I don't know. Seeing that humans are the principle cause of the current on-going mass extinction event, I wouldn't feel it a terrible loss if Homo sapiens ended up being one more statistic in the three and a half billion year history of life.

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"We must respect the other fellow's religion, but only in the same sense and to the extent that we respect his theory that his wife is beautiful and his children smart."
-- H. L. Mencken (quoted on Panda's Thumb)

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...like dinosaurs being replaced by mammals?

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Bah. A mere correction to an earlier mistake. If I recall correctly, the synapsids (mammal ancestors) were the dominant land animal until the Permian/Triassic extinction event wiped out most of them, allowing the archosaur ancestors the upper hand.-

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I personally don't like all this extinction....

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Yes, and I do admit to having a personal attachment to humans.On the other hand, having long ago accepted my own eventual demise, I have difficulty being too overwrought about the eventual end of the entire species.

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"We must respect the other fellow's religion, but only in the same sense and to the extent that we respect his theory that his wife is beautiful and his children smart."
-- H. L. Mencken (quoted on Panda's Thumb)