Evolution Seen in Worm Eyes
Darwin himself struggled to explain the evolution of so intricate an organ as the human eye. But scientists have discovered a worm's eye that may make the job easier.
Charles Darwin regarded explaining that natural selection could produce such an intricate organ as the human eye as one of the biggest challenges to his theory. "Now, a team of American and European researchers report that they have discovered an eye that could represent the first step in this evolution. They have found, in effect, a swimming eyeball." "It is possible...that in the course of evolution, our own eyes started out as swimming eyeballs. Only later did the job of catching light get relegated to only some cells, which could send signals to their neighbors. And only much later did these specialist cells relay signals to brains."
- The meaning of the word 'confidence' seems obvious. But it's not the same as self-esteem.
- Confidence isn't just a feeling on your inside. It comes from taking action in the world.
- Join Big Think Edge today and learn how to achieve more confidence when and where it really matters.
If you're lacking confidence and feel like you could benefit from an ego boost, try writing your life story.
In truth, so much of what happens to us in life is random – we are pawns at the mercy of Lady Luck. To take ownership of our experiences and exert a feeling of control over our future, we tell stories about ourselves that weave meaning and continuity into our personal identity.
The controversial herbicide is everywhere, apparently.
- U.S. PIRG tested 20 beers and wines, including organics, and found Roundup's active ingredient in almost all of them.
- A jury on August 2018 awarded a non-Hodgkin's lymphoma victim $289 million in Roundup damages.
- Bayer/Monsanto says Roundup is totally safe. Others disagree.
- Prejudice is typically perpetrated against 'the other', i.e. a group outside our own.
- But ageism is prejudice against ourselves — at least, the people we will (hopefully!) become.
- Different generations needs to cooperate now more than ever to solve global problems.
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