Plant-eating lizards on the cusp of tooth evolution

Researchers at the Universities of Helsinki and Lyon and the Geological Survey of Finland found that complex teeth, a hallmark of mammals, also evolved several times in reptiles, prompting the evolutionary success of plant-eating ...

The physics behind a water bear's lumbering gait

Plump and ponderous, tardigrades earned the nickname "water bears" when scientists first observed the 0.02-inch-long animals' distinctive lumbering gaits in the 18th century. Their dumpy plod, however, raises the question ...

Sticky toes unlock life in the trees

Many lizards are phenomenal climbers. Their sharp, curved claws are ideal for clinging to tree trunks, rocks and other rough surfaces. However, in the precarious world of tree tops—filled with slippery leaves and unstable ...

Molecule could beat antibiotic-resistant infections

By using their knowledge of how bacteria co-exist and compete with one another in nature, Western University researchers have discovered a compound that can inhibit the growth of Staphylococcus aureus, a deadly bacterium ...

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