Baboons wearing Fitbits reveal community secrets

You may know the Fitbits as handy little doo-dads strapped onto wrists that help people chart their fitness, but now a Fitbit-style device (an accelerometer) is being used to unveil the secrets of group cohesion in baboons. Researchers from the Max Planck institute of Animal Behaviour, Germany, sought to understand the costs and benefits of … Continue reading Baboons wearing Fitbits reveal community secrets

How fast was a T. rex?

Walking speed of a T-rex. Credit: Rick Stikkelorum, Arthur Ulmann & Pasha van Bijlert The Tyrannosaurus rex may have walked at a leisurely speed of 4.6km/h, according to 3D tail reconstruction. Researchers from Vrije Universiteit Amsterdam in the Netherlands built a biomechanical model to estimate how much a T. rex’s tail affected its stride. “The … Continue reading How fast was a T. rex?

Snakes move like sine waves

Physicists have long studied the unique movement of snakes, and now they have proof that there’s more to snakeskin than meets the eye. Sidewinders – found in the deserts of North America, Africa and the Middle East – are snakes that lead their movement with the middle of their bodies, instead of with their heads, … Continue reading Snakes move like sine waves