Life
Pet theory: Why domestic animals look cute
Darwin wondered why floppy ears, spots and other traits are common in domesticated animals. Cognitive biologist Tecumseh Fitch thinks he has the answer
Opinion
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Darwin wondered why floppy ears, spots and other traits are common in domesticated animals. Cognitive biologist Tecumseh Fitch thinks he has the answer
Understanding the different ways in which birds get their vivid hues could help us make coloured displays for devices such as e-readers