Ants follow Fermat's principle of least time

(Phys.org) —Ants have long been known to choose the shortest of several routes to a food source, but what happens when the shortest route is not the fastest? This situation can occur, for example, when ants are forced to ...

Why the switch from foraging to farming?

Thousands of years ago, our ancestors gave up foraging for food and took up farming, one of the most important and debated decisions in history.

Shattering the myth of men as hunters and women as gatherers

Analysis of data from dozens of foraging societies around the world shows that women hunt in at least 79% of these societies, opposing the widespread belief that men exclusively hunt and women exclusively gather. Abigail ...

What type of grass is best for beef cattle?

On average, Americans eat more than 50 pounds of beef each year (according to USDA estimates). But what do beef cattle eat? In the eastern United States, beef cattle often eat tall fescue, a "cool-season" grass. As the name ...

Making fish farming more sustainable

The American Heart Association recommends that we eat fish at least twice a week, since fish are high in protein, low in saturated fats and rich in omega-3 fatty acids. Global per capita fish consumption has almost doubled ...

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