Why is Red-Green Colorblindness a 'Guy Thing?'
Colorblind girls and women are rare, while men who can't match their socks are relatively common. The reason is a genetic phenomenon called sex-linked inheritance. Humans have 23 pairs of chromosomes. One of those pairs, called X and Y, determines sex. Most…
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Biology
I Am The Walrus
The walrus is a member of the pinniped family, which also includes sea lions and seals. Walrus differ from…
Astronomy
Will the Sun Shine Forever?
The Sun is a giant nuclear furnace. In its core, at about 15 million °C, it fuses hydrogen into…
Medicine
What's So Bad About Cholesterol?
Cholesterol has a worse reputation than it deserves. This waxy lipid (a kind of fat) is essential to good…
Mathematics
Fibonacci Patterns In Nature?
Often it takes a second look to see how mathematical numbers and patterns fit into the natural world. Numbers,…