A lava faucet in Hawaii, a bat-like robot, and other amazing images of the week

Newsworthy eye candy

Meet Bat Bot

Bats are excellent fliers: Their tiny, yet dexterous bodies allow them to swerve and swoop around the tightest spaces. That’s why scientists are using the same design to create a robot that can easily navigate dangerous, hard-to-reach areas like collapsed buildings. But before it takes to the sky, it needs to work on its landings.

All In The Family

See this good-looking guy here? He might be our earliest ancestor. Scientists say the recently-found fossil, named Saccorhytus, seems to be the oldest deuterostome identified to date. Deuterostomes, which include humans as well as starfish and other echinoderms, all develop in a similar way: The first hole that breaks through the embryonic sack of cells eventually becomes the organism’s anus.

Really Old Worm

This illustration shows off a shrimp-like worm—a fossil researchers presented this week—that is likely 500 million years old. Its weird-looking legs helped it lurk on the ocean floor way before shrimps existed.

Cheerleader Boxer Crabs

Sea anemones and boxer crabs share a unique relationship. Boxer crabs hold two—and only two—sea anemones close to their chest, and not many forces can pull them away, researchers report in a paper out this week. Their relationship is symbiotic: The sea anemones protect the crab and the crab is the sea anemones’ most reliable method of transportation.