Questions About 6 Million Years

Where was the Yucatan located 65 million years ago?

Where was the Yucatan peninsula located during the impact that created the Chicxulub crater? I'm looking for a map that depicts Earth at the end of the Mesozoic era and beginning of the Cenozoic, when the impact event occurred in the Yucatan peninsula to create the Chicxulub crater. I've been able to find plenty of information on the crater's current location, but 65 million years is a long time even for continents, and I'm wondering where the Yucatan was located back then. Thanks!

Is it so crazy to think intelligent life may have lived on Earth prior to the asteroid collision 65 million years ago?

Just a thought I had recently. Think about it, if an asteroid were to hit earth in 2 years, even with our current amount of technology, we'd probably be wiped out, and within 65 million years (actually, even within just 1 million years) pretty much all evidence of our entire civilization would be e…

Did I just kill a 200-million-year-old tree?

Can my very droopy and sad-looking Wollemi Pine be saved? He started out perky, but now he looks like Charlie Brown's Christmas tree. Or is this just what a 200-million-year-old gymnosperm looks like? My husband and I bought a Wollemi Pine from a Sydney nursery in September. The instructions we got indicated that the tree would be happy in a pot and out of direct sun, so we put him in a large pot near our front door. Here's what he looked like then. The location is sheltered and it gets only indirect sun. We read that overwatering can be a problem, so we've tried to limit watering to times when the pot soil feels dry. (No more than once every week or two.) We had an initial period of lots of growth, but now our little tree is looking very droopy. Here's what he looks like as of today. You can see all the new growth along his branches, but they're *very* droopy. Some of the lower branches are slightly brown and dry looking. I've been searching the Intern

Does "1 in a million" stuff happen?

Suppose that an event has a 1 in a million chance of happening in 1 year. The chance that it will happen once in a million years is %63. Explain. The above (paraphrased) comes from "Why Evolution is true", by Jerry Coyne. I've wondered about this for a while. It seems superficially intuitive that the chance should be %100. Of course this also seems completely wrong, and would fail the gambler's fallacy test at least. Could someone explain the maths that shows the chance is %63?

Recommend leather boots for men that will last a million years

Looking to buy men's boots of extremely good quality, under $300 This is the style I'm looking for (specifically with that round buckle thing, made of good leather, preferably black or very dark brown). My problem is I know nothing about men's shoes, and I'm not sure what brands (other than Doc Martens) are of good enough quality that my husband will eventually consider them family members (like he does with his Docs). So...browsing a bit I have seen recommendations for Frye and Chippewa. I am not sure that 300 can buy *the best boots of the universe*, but that's all I can afford!

"Greenhouse gas levels highest in 3 Million years". Okay… So why were greenhouse gases so high 3 million years ago?

Re: Carbon dioxide concentrations in the Earth's atmosphere are on the cusp of reaching 400 parts per million for the first time in 3 million years. The daily CO2 level, measured at the…

It is one million years in the future, and the human race is still going strong. How have our bodies evolved to adapt to our environment?

One million years because it seems like an appropriate timescale to imagine significant differences between us now, and us then. Like, for example, do we become physically weaker because of the advancement of technology? Do our cognitive abilities increase? Do sexual features like penises and bo…

Have humans as a species made enough of an impact on Earth, that if gone tomorrow, in 65 million years "they" would know an "advanced" species existed?

Thinking about how long of a time scale 65 million years(~extinction of dinosaurs) is got me thinking. Humans have made a massive impact on Earth from cities, agriculture, pollution, etc. You can see our impact from space and we continue to change the Earth more and more each day. These things, in …

Where's the dirt that should be on top of The Grand Canyon if it is really 550 million years old?

If The Grand Canyon is 550 million years old there should be 92,000 feet of topsoil between the top of the Grand Canyon and the bottom of the Grand Canyon. Every geologist know that topsoil forms at the rate of 1 inch per 500 years (ref: USDA website). So, if the Grand Canyon is 550 million years old it should be at least 92,000 feet tall because of the soil that would have accumulated but it is only 6,000 feet tall and it's made up of sand and shale. There isn't any topsoil and sand and shale don't become topsoil. The trilobytes should have at least 92,000 feet of dirt on top of them. Do the math. If the dirt had eroded away from the river areas it would have formed a delta somewhere but there is no delta either. So, where's the dirt?