Before I begin telling you about this fascinating new glue (adhesive), there's a thing or two you need to know about the animal that inspired it all, the gecko. Geckos are small lizards that have the ability to run up walls and scurry across ceilings with the help of tiny rows of hairs on their feet known as setae. Setae generate a multitude of weak attractions (called Van der Waals forces) between molecules on the two surfaces that add up to a secure foothold. Unlike glue or tape, a gecko’s sticky feet attach and detach effortlessly, which made it a perfect case study for engineers to model.

To create their artificial gecko adhesive, a Stanford team of scientists started by making silicone micro-wedges, which imitated gecko hair. They asse ...

Despite slang terms that imply otherwise, the human penis contains no bones. The same cannot be said for many of our closest evolutionary relatives: Chimpanzees and bonobos both have penis bones (a macaque one is pictured, left), also known as bacula.

To find out why some primates have the feature whereas others don’t, researchers traced the bone’s evolutionary history through time. The baculum first evolved between 145 million and 95 million years ago, as reported in the Proceedings of the Royal Society B. That means it was present in the most recent common ancestor of all primates and carnivores. Why some descendants, like humans, lost their bacula appears to be due to differences in mating practices: In primates, the presence of a penis ...

This lady beetle (Coccinellidae) is protecting its enemy. The cocoon between its legs holds a parasitoid wasp larva (Dinocampus coccinellae), which fed on the beetle’s insides before bursting from its belly. Researchers have discovered what makes the beetles act as babysitters: They are infected with a brain-controlling virus. When the larva emerges and spins its cocoon, the virus makes the beetle freeze in place, protecting the baby wasp from predators. ...

Biologists from James Cook University have discovered a new species of leaf-tailed gecko in Australia. The lizard is highly camouflaged against the granite boulders it lives on and grows to around 12 cm. It's been named the Cape Melville leaf-tailed gecko (Saltaurius eximius) after the region in northern Queensland where it was found.

A bacterium previously unknown to science was found in two spacecraft clean rooms, one in Florida and the other in Guiana. Space agencies use these rooms to prepare spacecraft for launch and are considered two of the most sterile places on Earth.

What can we learn from chimps swinging their hips? In this Nature Video, the walking style of our primate cousins are investigated, and we see what they can teach us about our ambling ancestors.