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It’s disconcerting to think the way two people perceive the world might be totally different. Mads Perch/Stone via Getty Images

Do you see red like I see red?

Neuroscientists tackling the age-old question of whether perceptions of color hold from one person to the next are coming up with some interesting answers.
Just 20 amino acids for chains in various combinations to create the thousands of varieties of proteins in our body. David Goodsell/ProteinDatabase

What is a protein? A biologist explains

A biologist explains where proteins come from and what role the 20,000 or so proteins in your body play in keeping you alive and kicking.
Getting the job done. A female Asian water dragon (Physignathus cocincinus) produced a daughter (left) without the assistance of a male. Skip Brown/Smithsonian’s National Zoo

Virgin births from parthenogenesis: How females from some species can reproduce without males

Parthenogenesis, a form of reproduction in which an egg develops into an embryo without being fertilized by sperm, might be more common than you realized.
The older you get, the more slowly you heal, and there are a number of reasons why. Westend61 via Getty Images

Why do older people heal more slowly?

Healing is a complicated process. As people age, higher rates of disease and the fact that old cells lose the ability to divide slow this process down.
Cellular networks have improved rapidly over the last few decades. moodboard via Getty Images

What’s cellular about a cellphone?

A professor of wireless communications explains the origins of cellular networks and how they evolved into today's 5G networks.
Mosaic in San Vitale Basilica, Ravenna, Italy. nimu1956/Collection E+ via Getty images

What are the origins of cathedrals and chapels?

Millions step into cathedrals and chapels on a regular basis. The history of these places of worship offers important insights into Christianity.

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