New techniques for 3­D imaging of fossilized bacteria reveal that Earth had a smelly past, a species of bat has developed a specialized tongue that changes shape near nectar-producing flowers, and what the coming cicadas could tell us about climate change.

Bees and flowers share electrical charges, a 62-year-old wild albatross produces chick, and new research suggests chimpanzees get feelings of satisfaction similar to humans after solving puzzles.

This week's dirt: the risk-taking gene, a possible new species of hominid unearthed in China, catapult-like action spreads plant spores, new coral appears to bleach less, western U.S.-based hummingbird species takes a trip to Jersey, fossils of two new species of dinosaur uncovered in Canada, and why carnivores don't have a sweet tooth.

This week's dirt: animal chemical warfare, what horse DNA tells us about the domestication of the horse, the growing problem of pythons in the Everglades, heightened demand in the ivory market, and more.

This video from NATURE explores how three distinctive animals in Cuba--the smallest bird in the world, the smallest frog in the Northern hemisphere, and the country’s famous painted snails--interact with Cuba's wildlife and ecosystems.

Skyscrapers towering over cities or spectacularly-designed bridges often come to mind when we think of great feats in architecture. However, some of the most amazing structures on earth are not man-made or urban at all, but residences built by animals in the natural world.

Filmmaker Ann Prum describes the breakthrough science and technologies that allowed her and the crew to reveal incredible new insights about hummingbirds.

Hummingbirds are the tiniest of birds, yet they are some of the toughest creatures on the planet. Watch the full episode now.

This week's dirt: Snail hitchhikers, infidelity in the finch world, a new color scheme for dinosaurs, and the slippery slope of carnivorous plants. Some of the biggest nature news, curated by the PBS Nature team.

Hummingbird mothers usually lay two tiny eggs, and the chicks hatch in a couple of weeks.