Cleaner wrasse have revealed a remarkable new side of fish intelligence. Marked with fake parasites, they used mirrors to inspect and remove the spots—far faster than seen in earlier tests. Even more ...

Learn how cleaner wrasse used a mirror and even dropped food to test their reflections, a behavior linked mostly to mammals.

Although Elon Musk disagrees, many consider Lidar sensors crucial for safe autonomous driving. However, a recent experiment appears to prove Musk's claim that Lidar is a fool's errand. Researchers ...

In the new experiment, roosters made fewer alarm calls, meant to warn peers of predators, when placed in front a mirror versus when standing near another rooster. Stefano Spaziani / picture alliance ...

The ultra smooth mirror was required to enable the researchers to perform experiments on electron acceleration in medium density gas jets, with the subsequent goal to ...