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This guy presents a nice quick history of where evolutionary thought came from, starting well before Darwin.
I thought it was nicely done.
I thought it was nicely done.
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The discussion highlights a concise history of evolutionary thought, emphasizing its origins prior to Darwin's contributions. It acknowledges the importance of geological and scientific discussions that laid the groundwork for Darwin's theories. The overall presentation is appreciated for its clarity and informative nature.
For more than a hundred years people have been intrigued by how animals are able to do certain navigating tasks so well. Being able to sense magnetic fields has been one of several clues animals could use to figure out where they should go. Among possible magnetic sensory mechanisms have been:
light sensitive proteins (cryptochromes) in the retina that can also react to magnetic fields.
Microscopic magnetite crystals on found in various areas of the body (often the nose near nerves)
A new...