This book was so ballin.' Get yourself the illustrated version. Sagan is just a delight to read.
jordopia 1 year ago
ahh there's never been anyone quite like him since. and we're the lesser for it.
Ratama 1 year ago
Selection is not random. Variation is random, but selection is nonrandom based on the environment.
aanjalii 2 years ago 4
Carl Sagan is awesome!
label62 3 years ago 4
This comment has received too many negative votes show
It's just a crab!
joecool174 4 years ago
Yes, it *is* just a crab. That's part of the point of this segment. Human selection due to human superstition bred it to look that way. It's an example of unintended artificial selection.
jursamaj 3 years ago 8
thanks for posting this!
CapeandCowl 4 years ago
This book was so ballin.' Get yourself the illustrated version. Sagan is just a delight to read.
jordopia 1 year ago
ahh there's never been anyone quite like him since. and we're the lesser for it.
Ratama 1 year ago
Selection is not random. Variation is random, but selection is nonrandom based on the environment.
aanjalii 2 years ago 4
Carl Sagan is awesome!
label62 3 years ago 4
This comment has received too many negative votes show
It's just a crab!
joecool174 4 years ago
Yes, it *is* just a crab. That's part of the point of this segment. Human selection due to human superstition bred it to look that way. It's an example of unintended artificial selection.
jursamaj 3 years ago 8
thanks for posting this!
CapeandCowl 4 years ago