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A geology professor at the University of Nevada, Las Vegas, has discovered that a set of 28 footprints left behind by a reptile-like creature 310 million years ago, are the oldest ever to be found in Grand Canyon National Park.
The fossil trackway covers a fallen boulder that now rests along the Bright Angel Trail in...
In the first study of its kind, research by Oregon State University scientists shows that the return of large terrestrial carnivores can lead to improved stream structure and function.
The findings, published today in Ecohydrology, are important because they highlight the role big predators play in the health of aquatic and riparian ecosystems.
Robert Beschta and William...
For the first time, researchers have succeeded in directly measuring the aerodynamics of flying animals as they manoeuvre in the air. Previously, the upstroke of the wings was considered relatively insignificant compared to the powerful downstroke but, in a new study, biologists at Lund University in Sweden have observed that it is on the upstroke...
Scientists have thought that the main determinant of maximal longevity in warm-blooded animals -- which varies from as little as 2 to as many as 211 years -- is a species' metabolic rate, which is inversely related to body size. It follows that at 2 years of life, small animals with high metabolic rates are...
Researchers at the University of Cincinnati are perfecting an innovative way to track the migration of elusive wildlife to help in their conservation.
UC professor Brooke Crowley studies feathers plucked from hawks captured for leg-banding in Idaho. Cooper's hawks and sharp-shinned hawks are small, predatory raptors that live across North America. They can be difficult to...
A new study has revealed how vultures use their very own social networks to work out the best way to take advantage of thermal updrafts to help them fly vast distances.
The research, carried out by a team from Swansea University led by PhD student Hannah Williams, examined how the vultures seemed to make risky but...