Non-avian dinosaurs were extinct about 65 million years ago, as the most recent dinosaur bone was directly dated as being 64.8 ± 0.9 Ma old.
The second dinosaur bone sample from Paleocene strata just above the Cretaceous-Paleogene interface yielded a Paleocene U-Pb date of 64.8 ± 0.9 Ma, consistent with palynologic, paleomagnetic, and fossil-mammal ...
Has tuff found amongst the deposits at the Dinosaur National Monument?
Yes. The most famous section of the rocks in Morrison Formation in Dinosaur National Monument, the Brushy Basin Member, is chock full of volcanic ash beds that have long since been converted to rock (1, 2, 3). It's also chock full of dinosaur fossils, which is what makes it so famous.
First let me just give you a philosophical overview as to why the question is disingenuous and you are barking up the wrong tree. You ask:
Was Richard Leakey correct, did they toss out the fossil, or the theories on early man?
No, he was not. Of course, that is because he was taken out of context in that selective quote (a favorite creationist tactic)....
Their claim is incorrect. On an astronomical scale, one kilometer is a very small value. In fact, Earth's orbit regularly varies by far more than 1km.
According to the NASA's Solar System Exploration website's facts and figures,
Metric: 147,098,291 km
Imperial: 91,402,640 miles
Scientific Notation: 1.47098 x 108 km (0....
The Goldilocks zone ("Circumstellar habitable zone") is a real thing:
In astronomy and astrobiology, the circumstellar habitable zone (CHZ), or simply the habitable zone, colloquially known as the Goldilocks zone, is the region around a star within which planetary-mass objects with sufficient atmospheric pressure can support liquid water at their surfaces....
There is nothing about bat evolution that is a threat to the theory of evolution.
First, the part of the claim that speaks of "moth-like wings" is not what elongated digits would look like. They might look more like those of a tarsier:
Second, the claim that there is no incremental benefit in ...
The T.Rex is more closely related to birds than to Stegosaurus.
The comic shows it in 3 different aspects:
From the T.Rex Wiki page, it lived during:
Fossils are found in a variety of rock formations dating to the Maastrichtian age of the upper Cretaceous Period, 67 to 65.5 million years ago.
While the Stegosaurus lived:
They lived during the ...
According to a Nature article from 1998 this is true (or at least, was in 1998).
Coelacanths were known for decades, but only as fossils. They appeared in the fossil record around 370 million years ago, had their heyday in terms of species diversity around 220 million years ago, and went into a long sunset that appeared to end with extinction, around 70 ...
The passage is a paraphrase of "De Rerum Natura" by Lucretius. Note that, while he does propose natural selection and puts forth a non-creationist view of nature, he doesn't really propose a theory which is similar to evolution. He suggests that novel creatures are literally born out of Earth (in womb-like cavities).
Earth was colonized by subsequent geni ...
I’m sorry, this is a long one. Unfortunately, the topic is complicated and I try to make it as understandable as possible. I’ll omit most of the technical details since they are hard to explain and don’t add a lot.
Executive Summary (“tl;dr”)
Epigenetic modifications do not constitute, nor enable, Lamarckian inheritance. Papers and reviews that claim this ...
Summary: Technically, we are apes. Colloquially, we didn't evolve from modern apes: we shared a recent common ancestor with them.
From Comparative genomics of higher primates (Max Planck Society):
The common chimpanzee and the bonobo or pygmy chimpanzee are our
closest living relatives, with whom we share a common ancestor that
lived 5–7 ...
Yes, Patrick Matthew recognized and published the basics of evolution by natural selection prior to Darwin. It is also well-known that Alfred Russell Wallace independently developed the same theory apart from, but at the same time, as Darwin. Neither Matthew nor Wallace, however, devoted a lifetime to researching and publishing a ground-breaking, full ...
WikiPedia on that subject quotes this article, which alleges that Catholic teaching accepts but doesn't require the theory of evolution.
Or a more authoritative answer about Catholic teaching is for example this from Pope Benedict in 2007, quoted on the Vatican web site as follows:
Currently, I see in Germany, but also in the United States, a somewhat ...
Yes. Darwin's theory is able to support the evolution of bat wings.
Bat fossil evidence is still coming to light. For example, in the last ten years, we have found new bat fossils that lack the structures allowing echolocation. We now know that bats likely evolved flight before echolocation.
One problem in finding specific fossils (such as a bat-like ...
There are no shortage of polls more recent than that 1999 article showing that a majority of people from North American would support creationism being taught in school.
Here are a couple:
Gallup, Aug 2005 showed 54% thought creationism should be taught in school science classes.
Pew, 2005 showed 64% were in favour of teaching it along with evolution.
You Should not Expect a Just-So Story
To my eyes, the question reeks of adaptationism: the attempt to explain what we see (cats and dogs, or otherwise) exclusively in terms of evolutionary adaptation, as if all creatures were evolutionary "perfect."
Humoring that, an adaptationist response would read as follows: Domestic pet warfare was emphatically not ...
There is a simple factual response based on the fossil record, "No. Dinosaurs and people did not coexist" but this does not really answer the question "did humans draw dinosaurs?" -- with the implicit assumption that the two coexisted. Here I will provide some commentary about cave drawings (petroglyph, pictogram) with sources for further reading.
First a ...
TL;DR: Sexual reproduction, by providing avenue for recombination of genes, assists in mitigating harmful mutations.
Neiman, Gery Hehman, Joseph T. Miller, John M. Logsdon, Jr., and Douglas R. Taylor. "Accelerated Mutation Accumulation in Asexual Lineages of a Freshwater Snail". Molecular Biology and Evolution, 2009; DOI: 10.1093/molbev/msp300
This answer has three sections:
Is human intelligence declining? No.
Is the genetic foundation of human intelligence eroding? This has not been shown.
Are other factors influencing the genetic component of intelligence? Probably.
Is intelligence declining?
No, human intelligence is not declining. In fact, it is increasing.
This is actually stated in the ...
Yes, women are more sensitive to high-pitched sounds than men.
Several studies (summarized here) have found that women are better than men when it comes to hearing acuity above 1 or 2 kHz:
Corso (1959) was among the first to report that females have superior
auditory acuity (i.e. lower thresholds) compared with same-age males,
particularly for test ...
Perhaps one of the most famous papers related to this is:
Zachary D. Blount, Christina Z. Borland, and Richard E. Lenski, Historical contingency and the evolution of a key innovation in an experimental population of Escherichia coli. PNAS June 10, 2008 vol. 105 no. 23 7899-7906, doi: 10.1073/pnas.0803151105
As part of a two decade experiment, carefully ...
This is a fairly common objection to evolution, that appears in various forms. There is a good answer here. It can be generalised to this:
Given a biological structure made up of a specific arrangement of a large number of substructures how likely is it that this particular arrangement could be formed by picking the substructures at random?
Where the ...
Doctors do always tell you to finish your course of antibiotics, even if you feel better. The reason for this is that you feel better before all the bacteria are killed within you body. If you stop the treatment early, the bacteria will start to grow again and the infection will recur. It is also likely that the second attack will consist of bacteria with ...
Without being able to scan in the page (or pages) in question I don't know if I can give you a definitive answer. The Table of contents of the book does list that dinosaurs are discussed on page 28. If you page through the book, it is a very, very skewed view of pretty much everything in there, slanted towards the creationist viewpoint (the preview only ...
The Rhesus factor is due to a particular mutation and is a gene which derives from our common ancestors with chimpanzees and gorillas:
The human RH locus is responsible for the expression of the Rh blood group antigens. It consists of two closely linked genes, RHD and RHCE, that exhibit 92% similarity between coding regions. These observations suggest ...
Two things that are often overlooked in discussions of evolution, particularly when it comes to sexual behaviour, are sexually antagonistic traits and epigenetics. Recent studies indicate that homosexuality may be due to a normally beneficial epigenetic mechanism that occasionally malfunctions. If this is the case, then homosexuality is an abnormal ...
Homo sapiens is, as far as we know, the only species that has permanently enlarged breasts. In the rest of the primates, plump breasts last only as long as breastfeeding does:
Humans are the only primate to have breasts that are enlarged at all
times, in contrast to other primates which have swollen breasts only
when breastfeeding. This ...
The shield-holding idea is not well supported by the references.
Fisher's thesis "Psychosocal differences between left-handed and right-handed children" seems to mainly evaluating consequences not causation. She cites
In the references section these are given as
Coates, E.F. (1996). The left handed: "Their sinister" ...