Taxonomy term


Dental plaque reveals later start date for hominin cooking

Ancient teeth have long been a source of information about ancient diets, mainly through analyses of isotopic compositions and wear patterns. In a new study published in the Science of Nature, researchers studied microfossils of food particles extracted from the teeth of a 1.2-million-year-old unidentified hominin found at the Sima del Elefante site in northern Spain. The microfossils include traces of raw animal tissue, uncooked starch granules from grasses, pollen grains from a species of pine tree and insect fragments. The lack of charring of the recovered fibers and an absence of micro-charcoal suggest the bearer of the teeth neither cooked his or her food nor spent significant time around a fire source.

30 Mar 2017

Why is a gallon of gas cheaper than a gallon of milk?

The fundamental differences between milk and gasoline — shelf life and the scales of production, distribution and consumption — drive milk to cost more than gasoline.
07 Aug 2016

How to feed 11 billion people: Addressing the 21st century's biggest challenge

Feeding the world in the future, as global populations reach upward of 11 billion in the next century, is likely to be a Herculean task. But researchers are working on how to address the issue from the skies down to the fields.

18 Jan 2016

Crystal Ball EARTH: Agriculture: The future will have a different face than the past

Tomorrow’s agriculture is facing an immense challenge. By 2050, the world’s population will reach somewhere between 9 billion and 10 billion people, and a greater proportion of those people will be enjoying a richer diet than today’s population. That means farmers will have to grow twice as much food. The world has already witnessed a preview of what might happen if large populations don’t receive an adequate supply of food: They do not accept their fates passively.

04 Dec 2009