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Two wooden human figures communicating with speech bubbles on yellow background.
Psychology

Huh? The valuable role of interjections

By Bob Holmes / Knowable Magazine

South America’s green fire taturana caterpillar, Lonomia obliqua, makes a venom that interferes with blood clotting; venoms of other caterpillars can cause long-lasting pain, severe itch, respiratory problems and more.
Medicine

The caterpillars that can kill you

By Bob Holmes / Knowable Magazine

The plant-based egg substitutes available today are less than perfect. Food scientists are working hard to improve them — and, maybe, make them better tasting and more nutritious than the real thing.
Nutrition

Cracking the recipe for perfect plant-based eggs

By Bob Holmes / Knowable Magazine

Hummingbirds draw the eye with their bright colors and busy, hovering flight. Biologists are drawn to understand the suite of adaptations they have evolved to survive extreme lifestyles.
Science

Hummingbirds thrive on an extreme lifestyle. Here’s how.

By Bob Holmes / Knowable Magazine

getting lost
Science

Why do some people always get lost?

By Bob Holmes / Knowable Magazine