Related topics: dinosaurs

Nanotubes illuminate the way to living photovoltaics

"We put nanotubes inside of bacteria," says Professor Ardemis Boghossian at EPFL's School of Basic Sciences. "That doesn't sound very exciting on the surface, but it's actually a big deal. Researchers have been putting nanotubes ...

Many in US doubt their own impact on climate

Americans are less concerned now about how climate change might impact them personally—and about how their personal choices affect the climate—than they were three years ago, a new poll shows, even as a wide majority ...

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Footprint

Footprints (or footmarks) are the impressions or images left behind by a person walking. Hoofprints and pawprints are those left by animals with hooves or paws rather than feet, while "shoeprints" is the specific term for prints made by shoes. They may either be indentations in the ground or something placed onto the surface that was stuck to the bottom of the foot. A "trackway" is set of footprints in soft earth left by a life-form; animal tracks are the footprints, hoofprints, or pawprints of an animal.

Footprints can be followed when tracking during a hunt or can provide evidence of activities. Some footprints remain unexplained, with several famous stories from mythology and legend. Others have provided evidence of prehistoric life and behaviours.

This text uses material from Wikipedia, licensed under CC BY-SA