biomechanics, evolution

A new analysis of fossil footprints suggests that the 2-meter-tall, 4- to 5-meter-long carnivores that left them could run nearly 45 kilometers per hour, bolstering the evidence that at least some dinosaurs were speedy, agile hunters.

Using their silk threads as a catapult, members of a family of orb-weaving arachnids rocket themselves and their webs through the air to capture prey.

A new study highlights the importance of the transverse arch in regulating the stiffness of the human foot.

Animals’ tails swat away insects using both wind and whack.